Quality Color Coated Aluminium Coil & Steel Sheet Coils factory

Shandong Zhongqiang Metal Materials Co., Ltd. Secures Large-Scale Pipeline Laying Material Order to Empower Infrastructure Upgrade Recently, Shandong Zhongqiang Metal Materials Co., Ltd. (hereinafter referred to as "Shandong Zhongqiang") has received exciting news—it has successfully secured a large-scale order for pipeline laying materials. The metal materials for pipelines covered by this order will be used in a key cross-regional water transmission pipeline project in China. This not only represents the market’s high recognition of Shandong Zhongqiang’s product quality and technical strength, but also lays a solid foundation for the company’s further expansion in the field of infrastructure material supply. It is understood that the winning large-scale pipeline laying material order involves multiple product categories, including metal anti-corrosion materials for high-strength spiral welded pipes and special steel for pipeline connections, with a total order value of tens of millions of yuan. The water transmission pipeline project corresponding to the order is a national key livelihood infrastructure project. Once completed, it will effectively alleviate the contradiction between water supply and demand in multiple cities along the route, and is of great significance for ensuring regional water supply security and promoting the sustainable development of the economy and society. Therefore, the project party imposed extremely strict standards in selecting material suppliers. After multiple rounds of qualification review, sample testing, on-site inspections and other processes, Shandong Zhongqiang was finally selected as the core material supplier. "The key to standing out among many competitors lies in our consistent focus on product quality and technological innovation," said the general manager of Shandong Zhongqiang Metal Materials Co., Ltd. in an interview. To meet the high requirements of the key project for pipeline materials, Shandong Zhongqiang has carried out special technical optimizations for the products under this order: in the material R&D phase, relying on the company’s self-built metal material laboratory, it has conducted repeated tests and improvements on core indicators of steel such as tensile strength, corrosion resistance and fatigue resistance, ensuring that the products can adapt to the service scenarios of pipeline projects—being buried underground for a long time and withstanding complex geological environments and water pressure; in the production process, it has adopted fully automated production lines and real-time quality monitoring systems, setting up strict quality inspection checkpoints for every process from raw material inbound to finished product outbound, and preventing unqualified products from entering the market. Previously, the company’s metal materials for pipelines have obtained multiple authoritative certifications, including ISO 9001 Quality Management System Certification and GB/T 3091-2015 Welded Steel Pipes for Low-Pressure Fluid Transport, giving the company significant advantages in product quality and stability in the industry. Regarding the fulfillment guarantee for this order, Shandong Zhongqiang has formulated a detailed production and delivery plan. At present, the company’s production workshops have adjusted the priority of production lines, deployed professional technical personnel and equipment, and made every effort to ensure the production progress of the ordered products. It is expected that the production, inspection and packaging of all materials will be completed within 30 days. At the same time, the logistics department has established cooperation with a number of professional freight companies and planned multiple transportation routes to ensure that the materials are delivered to the project construction site on time and safely, avoiding any impact on the overall construction progress of the project. Securing this large-scale pipeline laying material order not only brings considerable economic benefits to Shandong Zhongqiang, but also enhances the company’s brand influence in the field of infrastructure materials. In recent years, with the continuous advancement of domestic infrastructure construction, the demand for high-quality metal materials in fields such as pipeline engineering and municipal engineering has been growing. Shandong Zhongqiang has seized market opportunities, continuously increased R&D investment, and expanded product application scenarios. In addition to pipeline materials, the company’s products such as galvanized prepainted steel coils for construction and special steel for industrial use have also been widely used in a number of key projects, covering more than 20 provinces and cities across the country, while gradually exploring the overseas market. In the future, Shandong Zhongqiang will take this order as an opportunity to further optimize its product structure, improve its technical R&D capabilities and supply chain collaboration efficiency, and continue to provide high-quality metal material solutions for domestic infrastructure construction, contributing to the high-quality development of China’s infrastructure industry.

Shandong Zhongqiang Metal: Diverse Color-Coated Coils Sold at Home and Abroad, Empowering the Construction and Building Materials Industry with Technology and Quality Recently, the diverse color-coated coil products of Shandong Zhongqiang Metal Material Co., Ltd. (hereinafter referred to as "Shandong Zhongqiang Metal") — including galvanized color-coated coils, aluminum-zinc coated color-coated coils, and aluminum-magnesium-manganese color aluminum coils — have been selling well. These products not only cover multiple construction and building materials markets in North China, East China, South China and other domestic regions, but also are exported to overseas areas such as Southeast Asia, the Middle East and Africa. Relying on stable quality and customized services, the company has become a preferred partner for domestic and foreign customers in purchasing color-coated coil products. As an enterprise focusing on the R&D and production of metal materials, Shandong Zhongqiang Metal has always taken technological innovation as the core and built a full-process refined production system. In the color-coated coil production process, the company adopts an advanced four-stage process of "pretreatment - coating - curing - post-treatment": In the pretreatment stage, three processes of degreasing, phosphating and passivation are used to completely remove oil stains and impurities on the surface of the base material, improving the coating adhesion; In the coating stage, high-purity environmentally friendly coatings such as PE, PVDF and HDPE are selected, combined with fully automatic roll coating equipment, to achieve uniform and controllable coating thickness (14-25 microns for the front coating and 5-20 microns for the back coating); In the curing stage, a hot air circulation oven is used to precisely control the temperature and time, ensuring full curing of the coating and significantly improving weather resistance and corrosion resistance; In the post-treatment stage, processes such as finishing, slitting and coiling are carried out to ensure that the specifications of the color-coated coils, such as coil inner diameter (508/610 mm) and width (600-1250 mm), accurately meet customer needs. At the same time, customized processing services such as welding, punching and cutting are provided to meet the secondary processing needs of different scenarios. Relying on high-quality technology, the color-coated coil products of Shandong Zhongqiang Metal exhibit three core characteristics: First, excellent corrosion resistance: The base material of galvanized color-coated coils has a high zinc content, while aluminum-zinc coated color-coated coils form double protection with the aluminum-zinc alloy layer. Their salt spray resistance can reach more than 1000 hours, making them suitable for corrosive environments such as coastal areas and chemical industries. Second, long-lasting and stable color: High-weather-resistant coatings are used, with UV aging resistance of more than 15 years. Colors can be customized according to the RAL color card, covering various color systems such as crimson, ocean blue and metallic silver gray, to meet the personalized needs of architectural decoration. Third, reliable structural strength: High-strength steel and aluminum-magnesium-manganese alloy are selected as the base materials. After cold rolling forming, the color-coated coils have outstanding impact resistance and bending resistance. The aluminum-magnesium-manganese color aluminum coils also have the advantage of light weight (only 8-12 kg per square meter), facilitating transportation and installation. In terms of construction and application, the convenience of Shandong Zhongqiang Metal's color-coated coils has been widely recognized by customers. On the one hand, the products are supplied in coil form (coil weight: 3-6 metric tons), and can be directly cold-rolled into trapezoidal tiles, angle-lock tiles, tongue-and-groove tiles and other types on site using a dedicated roll-forming machine, without additional cutting. A construction team of 3-4 people can lay 300-500 square meters per day, and the construction efficiency is 3-4 times that of traditional tiles. On the other hand, the installation process only requires conventional tools such as electric drills and self-tapping screws. The tiles are fixed by overlapping, interlocking or mortise-tenon splicing, and the joints are sealed with butyl tape. Ordinary construction workers can operate after simple training, which greatly reduces labor and time costs. Post-maintenance is also simple: when local tiles are damaged, only a single tile needs to be replaced; when the surface is dirty, it can be cleaned by wiping with clean water or neutral detergent to restore its neatness. With the advantages of diverse characteristics and convenient construction, the application scope of Shandong Zhongqiang Metal's color-coated coils has been continuously expanded, covering multiple fields such as construction, agriculture and industry: In the construction field, galvanized color-coated coils and aluminum-zinc coated color-coated coils are used for factory roofs, exterior walls of light steel villas and enclosures of commercial complexes; aluminum-magnesium-manganese color aluminum coils, due to their light weight and decorative properties, have become the preferred material for roofs of high-end venues and office buildings. In the agricultural field, heat-insulating color-coated coils are used in the construction of agricultural greenhouses to achieve the dual functions of heat preservation and light transmission. In the industrial field, anti-corrosion color-coated coils are suitable for special scenarios such as chemical workshops and sewage treatment plants, ensuring the long-term stable operation of facilities. A relevant person in charge of Shandong Zhongqiang Metal said that in the future, the company will continue to optimize the production process, improve product performance, and at the same time improve the overseas service network to provide domestic and foreign customers with better color-coated coil products and solutions, and contribute to the green and efficient development of the global construction and building materials industry.

Recently, aluminum-magnesium-manganese panels have attracted widespread attention in the building materials market due to their outstanding performance and environmental advantages, becoming a new engine driving the development of green buildings. Aluminum-magnesium-manganese panels are made from aluminum as the base material, incorporating magnesium and manganese alloy elements, and produced through advanced processes. They have excellent corrosion resistance, with the alloy structure combined with PVDF and other coatings, which can resist coastal salt fog and industrial exhaust gas erosion, and operate for a long time in harsh environments, significantly reducing building maintenance costs. In terms of mechanical performance, they are lightweight and high-strength, weighing only about 1/3 of traditional steel, yet possess ≥170MPa tensile strength and excellent bending resistance, suitable for large-span buildings, facilitating the implementation of innovative designs such as curved roofs, and providing architects with more creative space. What is particularly outstanding is the environmental value. Aluminum-magnesium-manganese panels can be 100% recycled and reused, forming a closed loop from building demolition to raw material regeneration, which aligns with the "dual carbon" goals. Compared to traditional materials, it reduces the accumulation of construction waste and resource waste, promoting the green transformation of the construction industry. Currently, aluminum-magnesium-manganese panels have been widely used in sports venues, industrial plants, commercial complexes, and other projects. Industry experts point out that their performance and environmental advantages are reshaping the building materials market, and are expected to become a standard for green buildings, leading the industry towards a new stage of sustainable development, and injecting low-carbon vitality into urban construction.

Recently, in the field of building materials, aluminum-magnesium-manganese panels have become the focus of attention due to their excellent performance and environmental-friendly characteristics, injecting new vitality into the development of green buildings. As an alloy material, aluminum-magnesium-manganese panels are based on aluminum and incorporate elements such as magnesium and manganese, offering outstanding performance. In terms of corrosion resistance, their alloy structure and surface coatings (such as PVDF, etc.) work together, enabling long-term stable service in harsh environments like coastal salt spray and industrial pollution, significantly reducing building maintenance costs. In terms of mechanical properties, they are "light yet strong", weighing only about 1/3 of traditional steel, but possessing high tensile strength (≥170MPa) and excellent bending resistance (≥100mm), making them suitable for large-span buildings and assisting designers in achieving complex shapes, such as innovative curved roofs.Their environmental attributes are particularly impressive. Aluminum-magnesium-manganese panels are 100% recyclable, aligning with the "dual carbon" goals. From building demolition to raw material regeneration, they form a closed loop, reducing construction waste and promoting the green transformation of the construction industry. Currently, aluminum-magnesium-manganese panels are widely used in sports venues, industrial plants, commercial complexes, and other projects. Industry experts believe that their performance advantages and environmental value may reshape the market landscape of building materials, leading the industry towards a more sustainable future and becoming a standard material for green buildings.

The production of color-coated steel coils is a sophisticated process that integrates metalworking and chemical coating technologies. Each step plays a crucial role in determining the quality, performance, and appearance of the final product. The main production stages are as follows: Substrate Preparation The process begins with the selection of high-quality substrates, typically cold-rolled steel or galvanized steel sheets. These substrates undergo rigorous inspections to ensure they are free of surface defects such as unevenness, oil residue, or rust. The coils are then slit to the required width and unwound using decoilers to prepare for subsequent processing. Pretreatment Pretreatment is a critical step to ensure strong adhesion between the substrate and the coating. It involves several key processes: Degreasing: The steel surface is cleaned using alkaline solutions or specialized detergents to remove rolling oils and contaminants that could compromise coating adhesion. Rinsing: Thorough water rinsing follows to eliminate any residual degreasing agents. Phosphatization: The sheets are immersed in a phosphating solution to form a uniform, dense phosphate layer. This layer enhances both adhesion and corrosion resistance, providing a solid foundation for the coating. Coating Application Following pretreatment, the steel sheets enter the coating stage, where one or more layers of organic coatings are applied. Common methods include roll coating (the most widely used) and spray coating. Typical coating materials include polyester, epoxy resin, and polyvinylidene fluoride (PVDF). The process involves: Primer Coating: The first layer, which enhances adhesion and provides corrosion protection. Top Coating: A second layer, if required, to deliver decorative effects and weather resistance.Precise control of coating thickness is essential to ensure uniformity and consistent performance. Baking and Curing The coated sheets are then conveyed into a continuous baking oven, where they are cured at specific temperatures (typically between 200-300°C, depending on the coating type) for a set period. This process evaporates solvents and triggers cross-linking reactions in the resin, forming a hard, dense, and durable coating. Precise temperature and time control are critical: overheating can cause discoloration or cracking, while insufficient curing weakens adhesion and weather resistance. Cooling After baking, the sheets are cooled to room temperature using air or water cooling systems. This step prevents thermal deformation and ensures the coating retains its desired properties. Post-Treatment and Coiling The cooled sheets undergo a final quality inspection, checking for color consistency, gloss, smoothness, and adhesion. 合格的 sheets are then recoiled into tightly wound coils. The coils are typically packaged with moisture-resistant paper and plastic film to protect against damage and corrosion during storage and transportation, marking the completion of the production process.

Case of Loading and Shipping Exported Prepainted Steel Coils: Efficient Collaboration Ensures Order Fulfillment I. Case Background A construction company in Southeast Asia signed an order for a batch of exported prepainted steel coils with Shandong Zhongqiang Company. These prepainted steel coils will be used for the roof and exterior wall decoration of a large local commercial complex. The customer has strict requirements for the coating quality, dimensional accuracy, and delivery timeliness of the products. The enterprise needs to complete production within the specified time and send the goods to the port to ensure the smooth connection of subsequent maritime transportation links. II. Order and Product Information Product Information The prepainted steel coils exported this time are galvanized prepainted steel coils. The coating uses PVDF paint with strong weather resistance. The width covers various specifications from 600mm to 1850mm. The surface has customer - customized stone - like printed patterns. The coil weight is 1 - 3 tons, and they comply with international standards such as ASTM A653 and EN 10130. Order Requirements Production must be completed and the goods must be loaded and sent to the port within 10 days to catch a specific cargo ship voyage to Southeast Asia. III. Loading and Shipping Process (I) Production and Quality Inspection Stage The production department of the enterprise quickly organized production according to the order requirements. During the production process, every process was strictly controlled. From the galvanizing of the base material to the prepainted printing, professional quality inspectors were arranged for real - time inspection. After the production was completed, all prepainted steel coils were fully re - inspected in terms of dimensions, coating thickness, surface texture, etc., to ensure that the product quality fully met the customer's standards and laid a solid foundation for subsequent loading and shipping. (II) Pre - loading Preparations 1. Personnel and Equipment Scheduling Experienced loading workers were arranged in advance, and the operating status of loading and unloading equipment such as forklifts and cranes was checked to ensure that the equipment performed well and could complete the loading operation efficiently. 2. Site and Packaging Planning The loading site was cleaned and leveled to ensure that the site was spacious and solid, facilitating the operation of vehicles and equipment. At the same time, according to the specifications and weight of the prepainted steel coils, suitable packaging materials such as anti - rust paper and stretch film were prepared to properly package the prepainted steel coils and prevent damage such as collision and moisture during transportation. (III) Loading Operation During the loading process, workers operated in strict accordance with the specifications. Cranes and forklifts were used to smoothly lift and transport the prepainted steel coils to the transport vehicles. In order to ensure transportation safety, the loading quantity and placement position of each vehicle were reasonably planned according to the weight of the prepainted steel coils and the load - bearing capacity of the vehicles, so that the prepainted steel coils were evenly distributed and firmly fixed in the carriage, avoiding displacement or damage caused by bumps during transportation. After each vehicle was loaded, the fixing condition of the prepainted steel coils was carefully checked to ensure everything was safe. (IV) Shipping to the Port After the loading was completed, the transportation fleet drove to the port in an orderly manner according to the pre - planned route. The logistics department of the enterprise kept in real - time communication with the port freight forwarder, timely informing the driving progress of the vehicles and the estimated arrival time, so that the port could prepare in advance for receiving the goods and loading/unloading the ships, ensuring that the goods could quickly enter the maritime transportation link after arriving at the port. IV. Case Summary Through the efficient collaboration of various departments, from production and quality inspection to loading and shipping, the enterprise successfully completed the loading and shipping of this batch of exported prepainted steel coils to the port and fulfilled the order on time. This not only reflects the enterprise's professional capabilities in production management and logistics organization, but also lays a good foundation for long - term cooperation with the overseas customer. At the same time, it also shows the broad demand and application prospects of prepainted steel coils in the international architectural decoration market.

Case Analysis of the Full-Chain Service for Overseas Color-Coated Coil Orders of Shandong Zhongqiang Metal Material Co., Ltd. I. Case Background: Accurately Undertaking Overseas Customized Orders In the second quarter of 2024, Shandong Zhongqiang Metal Material Co., Ltd. (hereinafter referred to as "Shandong Zhongqiang Metal") received a customized color-coated coil order from a construction and building materials enterprise in Southeast Asia. The order focused on "high corrosion resistance + multi-specification adaptation" — the customer needed to purchase 200 tons of aluminum-zinc coated color-coated coils for local commercial complexes and light steel structure residential projects. Among them, 120 tons were of regular width (1220mm), and 80 tons were of special narrow specifications (650mm, 800mm). Additionally, the customer required the front PVDF coating thickness to be ≥20μm and the salt spray resistance to be ≥1500 hours to adapt to the high-temperature and high-humidity climate in Southeast Asia. Upon receiving the order, Shandong Zhongqiang Metal immediately launched the "customized service process": On one hand, the technical team conducted 3 rounds of online communication with the customer, and combined with the project drawings provided by the customer, confirmed the slitting accuracy (tolerance ≤±0.5mm) and coil weight (4-5 metric tons per coil, adapted to the customer's factory hoisting equipment) of the narrow-specification color-coated coils; on the other hand, the production department pre-allocated high-purity aluminum-zinc coated base materials and PVDF coatings to ensure the performance of raw materials met the order requirements. Finally, the order confirmation and production schedule were completed within 5 working days. II. Production Fulfillment: Refined Management Ensuring Quality and Efficiency To meet the customized specifications and performance requirements, Shandong Zhongqiang Metal adopted a "four-stage production process" and integrated quality control nodes throughout the process: Pretreatment Stage: For the aluminum-zinc coated base material, a three-step process of "degreasing - phosphating - passivation" was used. The fully automatic cleaning line removed oil stains and oxide layers on the surface, and a film thickness gauge was used to real-time monitor the passivation film thickness (controlled at 5-8μm), laying a foundation for coating adhesion. Coating and Curing Stage: Imported PVDF coatings (fluorine content ≥70%) were selected, and double-roll coating equipment was used to achieve uniform coating application. The front coating thickness was accurately controlled at 20-22μm, and the back coating (epoxy primer) was controlled at 8-10μm; then, the coils entered a hot air circulation oven, where the temperature was controlled in 3 stages (180℃ preheating, 230℃ curing, 200℃ heat preservation) to ensure complete cross-linking and curing of the coating, meeting the weather resistance requirements. Slitting and Finishing Stage: For the 650mm and 800mm narrow specifications, a numerical control slitting machine was used for precise cutting, and the slitting speed was controlled at 30m/min to avoid edge burrs caused by high-speed slitting; at the same time, a flatness detector was used to check the flatness of the color-coated coils (flatness tolerance ≤2mm per meter), ensuring convenience for subsequent deep processing. Quality Inspection Stage: 3 coils were sampled from each batch for salt spray testing (in accordance with ASTM B117 standard, no rust for 1500 hours), coating adhesion testing (cross-cut test, grade 5B), and impact resistance testing (no peeling after 50cm impact). All test data was synchronized to the customer in real-time to achieve "transparent quality control". Finally, the 200 tons of customized color-coated coils were produced within 18 working days, 2 days ahead of the customer's required delivery cycle, and all test indicators met the standards with a 100% qualification rate. III. Logistics and Transportation: Multi-Link Collaboration Ensuring On-Time Delivery To achieve seamless connection of "production - loading - port shipment", Shandong Zhongqiang Metal collaborated with logistics partners to develop a special transportation plan: Loading Preparation: After production, a packaging method of "moisture-proof film + corrugated paper + steel pallets" was adopted. Each color-coated coil was independently wrapped with a moisture-proof film, the edges were protected with corrugated paper on the outer layer, and then fixed on steel pallets to prevent coating scratches or moisture during transportation; at the same time, the truck loading capacity was reasonably planned according to the coil weight and specifications (25-30 tons per truck, transported in 8 trucks) to avoid cargo extrusion caused by overloading. Land Transportation to Port: A logistics company with dangerous goods transportation qualification was selected, and 13-meter high-sided trucks were arranged for point-to-point transportation (from the Shandong factory to Tianjin Port, with a total distance of approximately 400 kilometers). The vehicle location was tracked in real-time via GPS during transportation to ensure transportation efficiency; meanwhile, communication with Tianjin Port Customs was conducted in advance, and customs clearance documents such as commercial invoices, packing lists, and quality inspection reports were prepared to shorten the port customs clearance time. Port Connection: After the goods arrived at Tianjin Port, an exclusive freight forwarder coordinated with the terminal hoisting team to unload the goods accurately using gantry cranes, avoiding cargo damage caused by manual handling; then, the goods were packed into containers designated by the customer (40-foot high-cube containers, 25 tons per container). After packing, customs inspection was submitted immediately. Finally, customs clearance and shipment were completed within 3 working days after loading, and the goods were shipped to a port in Southeast Asia via a container ship. IV. Customer Deep Processing Application: Multi-Scenario Transformation Releasing Product Value After the goods arrived at the customer's factory, the customer processed the color-coated coils into various products through deep processing according to the needs of different construction projects. The specific application scenarios are as follows: Flat Plate Processing: The 1220mm regular-width color-coated coils were processed into 1.2m×2.4m flat plates using a leveling machine, which were used for indoor ceilings and wall decoration of commercial complexes; during processing, due to the high flatness and strong coating adhesion of the color-coated coils, there was no warping or coating peeling after leveling, directly eliminating the secondary leveling process and improving processing efficiency by 30%. Tile Pressing Processing: The 800mm narrow-specification color-coated coils were processed into trapezoidal tiles (wave height 25mm, wave pitch 150mm) using a cold-bending tile press, which were used for the roofs of light steel structure residential buildings; thanks to the good cold-bending performance of the color-coated coils, there was no coating cracking during tile pressing, and the formed tiles had a regular shape without subsequent repair. The daily output of a single tile pressing line could reach 5000㎡. Slitting Processing: The 650mm narrow-specification color-coated coils were further slit into 100mm and 150mm narrow strips, which were used to make decorative lines for building exterior walls and door/window frames; during slitting, due to the burr-free edges of the color-coated coils, no additional grinding was required for subsequent bending and welding processes, and the processing accuracy met the customer's requirements (dimensional tolerance ≤±0.3mm). Decorative Accessory Processing: The remaining leftover materials (width ≥50mm) were processed into circular and square decorative accessories using a laser cutting machine, which were used for entrance signs and wall embellishments of commercial complexes; the high weather resistance of the PVDF coating ensured that these outdoor accessories would not fade or rust within 5 years in the high-temperature and high-humidity environment of Southeast Asia, reducing the customer's subsequent maintenance costs. Customer feedback showed that the deep processing qualification rate of this batch of color-coated coils reached 99.5%, which was 2.3 percentage points higher than that of other brand products purchased previously. Moreover, the processed products were highly recognized by local design institutes and owners in project applications. V. Case Summary: Customized Services Building Competitive Advantages In this case, through the full-chain service of "accurate order docking - refined production - collaborative logistics - customer deep application", Shandong Zhongqiang Metal not only achieved efficient fulfillment of overseas customized orders but also built competitive advantages through the following core capabilities: Customized Production Capability: It can quickly respond to non-standard specification requirements (such as narrow width and special coating thickness), and at the same time ensure product performance through full-process quality control, meeting the climate and application scenario requirements of different regions. Full-Chain Collaboration Capability: It connects the links of "production - logistics - customs clearance", shortens the delivery cycle through advance planning and real-time communication, and reduces the customer's supply chain costs. Customer Value Extension Capability: By providing color-coated coils with stable quality, it facilitates the customer's subsequent deep processing, indirectly improves the customer's product competitiveness, and achieves a "win-win" situation. In the future, Shandong Zhongqiang Metal will continue to optimize its customized service system, develop more targeted color-coated coil products for the climate and application needs of different overseas markets (such as the Middle East and Africa), and further expand its overseas market share.

At 5:30 am on August 3rd, the street lights in the logistics center of Tianjin Port Free Trade Zone were still on. Four silver-gray Scania container trucks had already stopped at the 3rd loading area, and the fixed brackets in the cargo compartments were already adjusted in place - the 150 tons of aluminum-magnesium-manganese plates to be loaded today would board a ship from Tianjin Port and cross the Indian Ocean to the photovoltaic power station project site in Perth, Australia.  "These are 3003 series aluminum-magnesium-manganese plates, with a thickness of 1.2mm. The PVDF coating required by the customer must be able to withstand the strong ultraviolet rays in Australia." The warehouse supervisor, standing on a ladder, used a caliper to measure the side of the top roll. The palms of his anti-slip gloves had already worn out rough edges. On the adjacent quality inspection record sheet, the weather resistance test data was particularly prominent: after 3000 hours of xenon lamp aging test, the coating gloss retention rate reached 85%, fully meeting the AS/NZS 3715 standard. Each roll of the plates had an orange label attached, with specifications, batches and QR codes marked in both Chinese and English. Scanning the label would reveal the entire traceability information from melting to rolling.  At 6:15 am, the first 20-ton forklift started. The driver adjusted the angle of the cargo fork and carefully inserted the core of the roll into the wooden bracket beneath. "This thing looks light, but each roll weighs over 4 tons. The fork teeth must be fully inserted into the groove of the bracket, otherwise it's prone to slipping." He stared at the display screen in the driver's cabin, slowly raising the cargo fork to a height of 1.8 meters, and then moving it to the side of the truck. Before that, two workers had already held wooden pads ready. As the plates steadily landed in the center of the truck, they quickly inserted 4 rubber buffer pads into the gap between the roll and the truck body, and then used galvanized steel straps to pass through the roll core and firmly fixed it to the hooks on both sides of the truck.  At 9:03 am, the last roll of aluminum-magnesium-manganese plates was loaded. The order coordinator crouched on the ground, using a mobile phone to take close-up shots of each container seal. The number "TJ23110308" in the shot was clearly visible. In her folder, the originality certificate from the Australian customs, the fumigation certificate, and the component analysis report were arranged in order, with an English-labeled loading diagram on top, detailing the position and fixation method of each roll of plates. "The customer specifically emphasized the need to comply with Australia's loading specifications, fearing that the coating might be worn off due to sea turbulence." The order coordinator said as she clicked "Loaded" in the cross-border logistics system, and the system immediately sent an advance shipment notice to the customer in Melbourne.  At 10:00 am, the driver of the first truck tore off the seal on the door, and the blue logo of "COSCO Shipping Logistics" on the vehicle body shone in the morning light. The plastic-sealed route map was pasted on the door, with a red pen marking the 27-kilometer route from the free trade zone to Tianjin Port, and beside it was written "Must arrive at the port before 11 am, and customs declaration deadline is 13 am". As the driver turned the steering wheel, the slogan on the wall of the logistics center reflected in the rearview mirror: "Quality wins the world, connectivity reaches everywhere".  When the four trucks left one after another, a pale yellowish tint appeared in the sky. In the distance, the Tianjin Port dock, the outline of the huge ships was already clearly visible. The cross-border journey of the 150 tons of aluminum-magnesium-manganese plates was slowly unfolding with the rotation of the wheels.

At 6 o'clock in the morning on July 12th, the dew on the logistics park of Qingdao Port Free Trade Zone had not yet dried, and three red Yifeng container trucks were lined up in the 5th loading area. The forklift driver rubbed his hands and started the equipment - today he was going to load 280 tons of coated steel rolls onto these three vehicles. This batch of goods would be loaded onto ships at Qingdao Port and finally arrive at the industrial zone of Riyadh in Saudi Arabia 24 hours later.  "These are 3004 series aluminum-magnesium-manganese coated steel rolls. The customer specified RAL9006 gray white color, and the coating thickness must reach 25μm." The quality inspector, wearing white gloves, was checking the laser codes on each steel roll. The test report in her hand showed that the salt spray resistance test of this batch of goods reached 1000 hours, meeting the climate requirements of high temperature and high humidity in the Middle East. The coated steel rolls were stacked on wooden pallets, and the exposed metal surface under the blue rainproof cloth reflected the morning light, and the anti-scratch film at the corners still maintained its original integrity upon leaving the factory.  The electronic screen in the loading area showed real-time temperature and humidity: 23℃, 65%. The hoisting supervisor stared at the operation screen and controlled the mechanical arm of the 25-ton crane. "This job has to be stable. The roll diameter is 1.2 meters, the center of gravity is on the upper side, and the lifting angle cannot exceed 45 degrees." He said as he adjusted the lifting equipment and slowly lifted a 4-ton coated steel roll off the ground and moved it to the designated position in the container. Two workers quickly tightened the rubber pads and fixed the steel roll in the groove on the side wall of the container - this could reduce the shaking amplitude by 30%.  At 9:17 a.m., the last coated steel roll was placed. The order checker took out her mobile phone, took a photo of the container's seal number, and immediately uploaded the packing list, commercial invoice and origin certificate on the cross-border logistics APP. "This batch of goods is under the CIF terms. It is expected to arrive at the port in 18 days. The customer has already received the advance notice, and the customs clearance documents have already been sent by email." Her folder also contained an Arabic packing list, which was the version specially checked by a translation company last week.  At 10:00 a.m., the driver of the first truck tore off the seal and "click" closed the container door. The vehicle was attached with a yellow route map, with three red circles marking the three mandatory weighing stations on the way to Qianwan Port. "Yesterday, I just changed the brake pads on the tires. The entire journey is 38 kilometers, and it has to go through the expressway to avoid the 3 p.m. port entry appointment delay." He patted the steering wheel and started the truck when the rearview mirror reflected the red slogan "Made in China, Shared Globally" at the entrance of the logistics park.  As the three trucks drove away one after another, the park's broadcast was reporting the weather forecast: "Today, the north wind is 3 levels, suitable for port operations." The gantry crane far away had already started to rotate, and the journey of the 280 tons of coated steel rolls had just begun.

What is PPGI Steel Coil? Unveiling Its Superiority and Applications At ​Shandong Zhongqiang Metal Materials Co., Ltd, we take pride in offering top-tier ​PPGI (Pre-Painted Galvanized/Aluzinc Steel Coil), a versatile material that combines functionality, aesthetics, and durability. Whether you’re in construction, manufacturing, or interior design, PPGI steel coils are the ideal choice for projects demanding strength, corrosion resistance, and vibrant finishes. ​What is PPGI Steel Coil? PPGI steel coil refers to ​pre-painted galvanized or aluzinc steel coil. It is a cold-rolled steel substrate coated with a layer of zinc or aluminum-zinc alloy for corrosion protection, followed by a durable, decorative, and color-coated layer. This multi-layered structure not only enhances the steel’s longevity but also provides a sleek, uniform appearance, making it suitable for a wide range of applications. At Zhongqiang, our PPGI coils are produced using advanced technology and eco-friendly paint systems, ensuring superior quality, environmental compliance, and consistency. ​Key Advantages of PPGI Steel Coil ​Unmatched Durability The ​galvanized/aluzinc layer offers excellent resistance to rust, corrosion, and weathering, even in harsh environments. Ideal for outdoor and marine applications, PPGI coils can withstand extreme temperatures, humidity, and UV exposure. ​Aesthetic Versatility Available in a ​wide spectrum of colors, patterns, and finishes (matte, glossy, metallic), PPGI coils cater to both functional and decorative needs. Perfect for modern architecture, household appliances, automotive parts, and more. ​Cost-Effective Solution Compared to other coatings, PPGI coils reduce maintenance costs and extend the service life of products, delivering long-term savings. Lightweight yet sturdy, it minimizes transportation and handling expenses. ​Ease of Processing Highly formable and weldable, PPGI coils can be easily cut, bent, or punched for diverse applications without losing structural integrity or coating quality. ​Environmentally Friendly At Zhongqiang, we prioritize sustainability by using low-VOC (volatile organic compound) coatings and recycling water in our production processes. ​Applications of PPGI Steel Coil Our PPGI steel coils are trusted across industries for their reliability and performance: ​Construction Industry: Used for roofing, wall cladding, ceilings, and facades in commercial, residential, and industrial buildings. PPGI coils provide a weatherproof and visually appealing solution. ​Home Appliances: Ideal for manufacturing washing machines, refrigerators, air conditioners, and microwave ovens due to their durability and aesthetics. ​Automotive & Transportation: Applied in vehicle body panels, cargo containers, and truck beds for corrosion resistance and style. ​Furniture & Interior Design: Used for kitchen cabinets, shelves, and paneling, offering a sleek, modern look. ​Industrial Use: Suitable for machinery enclosures, storage tanks, and electrical panels.