
ChangZengis a manufacturer that specializes in producing steel tubing. ChangZeng's main products include steel beam series. The improved steel h beam is light in weight and therefore easy to handle. It complies with the standards of GB, ASTM, JIS, BS, EN, TOCT, KSD, IS, etc. Shanghai ChangZeng Co., Ltd.'s great capacity helps develop the right deficiencies within your company. It can be cold rolled to be smoother and have more precise dimensions.

Respect for people is one of the values of our company. And we do thrive on teamwork, collaboration, and diversity with customers.