
Shanghai ChangZeng Metal Co., Ltd. is a steel coil supplier with extensive industry experience. ChangZeng's steel tubing series include multiple types. The independent design of steel products provides guarantees for our own brand promotion at the source. It accepts the de-oxidation process to be killed or semi-killed steel. This product is safe to use. It has passed the electrical safety test, involving electromagnetic interference level test, surge test, electrostatic discharge test, and leakage test. It is chosen for its higher resistance to corrosion.

Sustainable development is at the core of our daily operations and guides our future progress. We believe we will benefit from these efforts in a number of ways.