Shanghai ChangZeng Metal Co., Ltd. ranked first in China's production and sales for many years steel tubing. ChangZeng's main products include steel tubing series. ChangZeng become more famous mainly for its independent designs. It can be cold rolled to be smoother and have more precise dimensions. ChangZengprovides superior customer service, costs saving and excellent communication to agents and clients. Its comes with optional additional alloys including carbon, manganese, silicon, chromium, nickel, molybdenum, and vanadium.
Our mission is to establish strong relationships with all our partners and to ensure client satisfaction by the highest quality products.