
ChangZengis a team that is constantly fighting in the steel beam industry. ChangZeng's steel products series include multiple types. This kind of steel sheet is designed by our professional team who have been specialized in this field for years. Its heat treatment includes annealed, quenched, tempered, etc. ChangZengturns customers' most worthy opportunities and most rigorous challenges into their real competitive advantages. It complies with the standards of GB, ASTM, JIS, BS, EN, TOCT, KSD, IS, etc.

Our mission is to establish strong relationships with all our partners and to ensure client satisfaction by the highest quality products.