Jiangsu Changbao Steeltube Co., Ltd. engages in the research and development, manufacture and sale of seamless tubes. It products include oil country tubular goods, boiler seamless pipe, conveying seamless pipe, hydraulic prop tube, high pressure chemical fertilizer pipe, automobile axle casing, ship canal and geological drilling pipe. The company was founded in 1958 and is headquartered in Changzhou, China.