Jiangsu Changbao Steeltube Co., Ltd is founded in 1958. In 1993, it was incorporated by BaoSteel Group which is the biggest steel group in China, and renamed to Changzhou Baosteel Limited co. In 2003, through a series of reform, we improved our government structure and renamed to Jiangsu Changbao Steeltube Limited co. We have two hot-rolled production lines and a cold-drawn production line, and two processing line for OCTG. Our primary products are tubing, casing, coupling, line pipes, pipes for high pressure boiler and low &medium pressure boiler. The specification ranges from 6mm(OD) to 219mm(OD). Our producing capability reaches to 400 thousand ton per year.