Jiangsu Liwan has 485 employees,IATF16949,ISO14001,ISO45001.Liwan has 40 years precision tube manufacturing experience of ERW tube,CDW tube, cold rolled seamless tube and processing of tube parts. We have imported Nakata welding machine from Japan and Thermatool welding line from USA, we also have different types of cutting machines from Germany, Japan, Korea.Our heat treatment furnaces are KYK from Japan and Handok from Korea. We produce 60,000 tons welded precision tubes, 35,000 tons welded cold drawn tube and 30,000 tons precision seamless tubes and 60 million parts.