
Shanghai ChangZeng Metal Co., Ltd. is China's most famous steel tubing brand. ChangZeng's main products include steel sheet series. Even with the high cost for superior raw material, ChangZengfirmly believe good quality of steel tubing is everything. Its excellent tensile strength and yield strength contribute to the quality of the final product. There is no need for worrying about the after sale service while cooperating with Shanghai ChangZeng Co., Ltd.. Its microstructure can be Ferritic, Pearlitic, Martensitic, Etc.

We put emphasis on customer focus. We ensure that all aspects of our company will put the customers' satisfaction first.