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

Galvanized Steel Coil

The addition of zinc in the hot-dip galvanizing process serves as a protective barrier against harsh environments and impurities. Learn more about galvanized steel coil

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Galvalume Steel Coil

Galvalume steel coil is a type of steel with a coating of aluminum and zinc, protecting it from oxidation. Learn more about the basics of

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Galvannealed Steel

Galvannealed steel’s zinc coating has a good absorption quality that enables paints to cling to the surface compared to galvanized steel. Read to learn more

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Testimonials

What they say about us