Laboratory
Fully equipped galvanized and pre-painted steel laboratories for testing and evaluation of products.
Free Sample
We do sample production according to your specifications, you may need to pay the courier fee
After-Sales
The quality of the pre-painted steel is found to be defective during use, and the evidence is retained for claim settlement.
Quality Assurance
Precise Dimensional Tolerances & Tight Control on Zinc Coating Mass. Paint thickness without cutting corners. For some suppliers, the actual product does not match the specification.
What We Offer
Focus on metal coil industry
Free Sample Testing
The composition of the steel coils sold by some suppliers does not match, and the specifications of the pre-painted steel cannot be judged by the naked eye. COSASTEEL provides free sample testing
Who we are
Reliable Steel Coil Supplier
COSASTEEL is a PPGI coil , galvanized coil, aluzinc coil manufacturer in China. We cooperate with PPG, Beckers, valspar, Nippon and other well-known paint brands to ensure the service life of pre-painted steel. We have the ability to produce Z275 galvanized and AZ150 galvalume. We have 7 steel coil production lines, which have improved the product production capacity.
Featured Articles
Read Knowledge of Steel Coil
PPGI Coil: Purchase Guide and Knowledge
PPGI stands for Pre-Painted Galvanized Iron, a type of steel product that has undergone a series of processes to enhance its durability and aesthetic appeal.
Prepainted Steel Coil: Substrate, Coatings and Properties
Prepainted steel coils, also known as pre-coated steel, color-coated steel coil, or PPGI (pre-painted galvanized iron) coil, have been coated with primer and paint before
Galvanized Steel Coils: Properties, Process, Standards and Specifications
Galvanized steel coils are steel sheets coated with zinc to prevent corrosion, making them durable and long-lasting. The galvanization process involves submerging steel coils in
Galvalume Steel Coil: Guide to Durability and Performance
Galvalume steel coil, developed by Bethlehem Steel in 1972, combines the corrosion resistance of aluminum with the sacrificial protection of zinc, providing a lifespan about
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