Leading Steel Coil Manufacturer From China
PPGI coil, GI coil, GL coil is our main product, in addition we can also produce metal roofing, the MOQ is 25 tons.
What We Offer
Focus on metal coil industry

Who we are
Reliable Steel Coil Supplier
COSASTEEL was established in 2016, located in China, which is a steel coil manufacturer and supplier and factory. We manufacture galvanized steel sheets in coil, pre painted galvanized steel coil, galvalume steel coil, prepainted aluminum coil. Annual output of 800,000 tons of steel coils.
Featured Articles
Read Knowledge of steel in our blog
G300 Steel
G300 steel is a Metallic Coated structural steel in the AS 1397 standard, and the minimum yield strength is 300 MPa. G300 steel is used
May 29, 2023
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Hot Rolled Coil Price
The price of hot rolled coil is constantly changing every day, it is very important to know the price of hot rolled coil when purchasing
May 25, 2023
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Zincalume Steel
Silicon, aluminum, and zinc offer high corrosion resistance in Zincalume steel. Read our information below about the benefits of Zincalume steel to your building and
April 28, 2023
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Testimonials
What they say about us
"COSASTELL always keeps the delivery of PPGI/GI steel coils on time, and the zinc layer and coating are consistent with the contract."
Mark HavelaarPurchaser