GB/T 3639 suppliers Company Introduction Certificate History Mission, vision, and values Zhejiang Dingxin Steel Tube Manufacturing Co., Ltd., founded in 2004, is a leading precision seamless steel tube manufacturer in China. Our factory locates in Jiaxing City, which is only 100 kilometers away from Shanghai. It covers an area of 25,000 銕?/span>, with an annual production capacity of 30,000+...