Hot dip galvanized steel coils (GI) are the most widely used anti-corrosion coated steel in the world. With three core advantages of excellent formability, self-healing anti-corrosion, and high cost-effectiveness, they have become essential materials for infrastructure projects in Southeast Asia, the Middle East, and Africa. As a direct source exporter, Longyi Import and Export can supply full specification, full zinc layer, and multi surface process galvanized steel coils, suitable for industrial and civilian scenarios in various countries.

The product production adopts mature cold rolling, degreasing, and continuous hot-dip galvanizing processes. The zinc layer uniformly adheres to the surface of the steel plate, forming a dual protection of physical isolation and sacrificial anode. Even if the plate is cut or the surface is slightly scratched, the zinc layer will automatically oxidize and protect the substrate, greatly reducing maintenance costs in the later stage. The weight of the zinc layer can be selected from 30g/㎡ to 180g/㎡. For coastal areas with high salt spray, a thicker zinc layer version can be customized. The outdoor service life is 3-6 times longer than ordinary black steel plates. The surface supports four processes: no zinc flower, small zinc flower, conventional zinc flower, and large zinc flower. It can be passivated, electrostatically coated, and fingerprint free, meeting the different appearance requirements of household appliances and buildings.
The specifications cover a wide range, with a thickness of 0.12mm-2.5mm, a standard width of 600-1250mm, a steel coil inner diameter of 508/610mm, a single coil weight of 3-15 tons, and support for processing various narrow steel strips in strips. The material grades are complete, including national standard Q175/Q235/Q345, Japanese standard SGCC/SGCD, American standard CS/FS, European standard DX51D+Z/DX53D+Z, etc. The yield strength is 350-550MPa, the tensile strength is 350-750MPa, and the bending, stamping, and welding performance is stable. It can directly process corrugated tiles, C-shaped steel, ventilation ducts, automobile chassis, and agricultural grain warehouses.

Longyi strictly controls the factory quality inspection, and each batch of products comes with an original material list and inspection report, which comply with the import customs clearance standards of various countries. To address the pain points of overseas buyers, we optimize our supply chain and have a stock of thousands of tons of goods available year-round, eliminating the need for lengthy production scheduling; Logistics can be combined with full container load (FCL) and LCL transportation, with synchronized shipments from the four major ports. A professional documentation team can quickly handle customs declaration, certificate of origin, and inspection documents to avoid customs clearance delays.
Compared to similar suppliers, we not only provide steel products, but also offer customized technical solutions: we recommend thick passivated galvanized coils for high-temperature areas in the Middle East, fingerprint free oil coated products for rainy areas in Southeast Asia, and low-carbon deep drawing substrates for European home appliance customers. At present, we export 3000 tons of galvanized steel coils overseas every month, cooperating with hundreds of factories, home appliances, and transportation enterprises, with a long-term repurchase rate of over 85%. If you have a demand for purchasing galvanized steel coils, you can submit a message online, and we will provide accurate quotations and sample shipping services within 24 hours.