
ChangZenghas been focused on providing superior OEM and ODM services since inception. ChangZeng's steel coil series include multiple types. The majority of our customers are attracted by steel h beam of steel products. Heat treatment yields a higher wear resistance in this type of steel. ChangZengcombines professional experience, advanced technology and worldwide network. Its heat treatment includes annealed, quenched, tempered, etc.

We set goals in term of bearing social responsibility. And these goals have given us an even deeper sense of motivation to do the best work possible in and outside of the factory.