OUR PRODUCTS
PPGI coil, GI coil, GL coil is our main product, in addition we can also produce metal roofing, the MOQ is 25 tons.
COMPANY PROFILE
COSASTEEL was established in 2006, located in China, which is steel coil manufacturer and supplier and factory. We manufacture galvanized steel sheet in coil, pre painted galvanized steel coil, galvalume steel coil, prepainted aluminum coil. An annual output of 800,000 tons of steel coils.
Blog
What is the best roofing material?
There are more and more choices of roofing materials, and people are also wondering what is the best roofing material? If you want to replace
What is maraging steel?
Definitions of Maraging Steel Maraging steel is ultra-high-strength steel based on carbon or micro-carbon martensite, and precipitation hardening intermetallic compounds are produced during the aging

Galvanized steel vs Aluminum
What is galvanized steel? Galvanizing is an economical and effective anti-corrosion method often used. Classification of galvanized steel Hot-dip galvanized steel, electro-galvanized steel, single-sided or
How to paint galvanized steel?
Galvanized steel is widely used to control atmospheric corrosion. To improve the corrosion resistance or decoration of galvanized steel, it is often left to be
What is galvalume?
What is Galvalume? Galvalume is a coating composed of zinc, aluminum, and silicon that protects metals (mainly steel) from oxidation. It is similar to galvanizing
Does galvanized steel rust?
Does galvanized steel rust? 1. Galvanized steel sheet will rust. Depending on the environment where the galvanized steel sheet is located, the reaction will be