
ChangZengis in a leading position in the world in the field of study and production technique of steel coil. ChangZeng's steel tubing series include multiple types. To Shanghai ChangZeng Co., Ltd., adopting superior raw material for steel products is responsible for customers. It is highly resistant to corrosion and oxidation. weacts swiftly and flexibly. It accepts the de-oxidation process to be killed or semi-killed steel.

We aim to become a global leading company. We are confident that we can provide the ideal elements within our value chain to attain the maximum benefit for each individual customer.