
ChangZengis a steel products manufacturer dedicated to design, development, production and sales. ChangZeng's steel tubing series include multiple types. By designing galvanized steel coil, steel coil is rich in its unique texture. Its heat treatment includes annealed, quenched, tempered, etc. ChangZengnetworks with strategic partners worldwide. It comes with installation instructions and videos.

We value sustainability. We spare no efforts to raise awareness of sustainability issues among our employees, material suppliers, and our customers.