Baotou Haiyang Steel Pipe Co., Ltd., established in 1996, is located in Baotou City with the name of steel castle on grass. in which one of the strategic partners of Baogang Steel Group, with the first-level agent in seamless steel pipes and API 5CT oil casing&tubing in Northwest China. Our registered capital is RMB20 million. Our annual sales value reaches RMB6 billion. We a enterprise which has independent export right. Product standard is based on GB standard, APIspec5L, 5CT, JIS, DIN, and BS standard. can produce different materials, we also supply products according to...