1.Standard: EN, ASTM, JIS, DIN, GB, ISO, etc. 2.OD:15mm~1200mm 3.WT:3mm~820mm 4.Length: About 12m or as required 1.Product name:Carbon steel pipe, carbon steel seamless pipe, carbon steel welded pipe 2.Application:used in thermal power, hydropower, nuclear power, oil and power transportation project, large petroleum refinery, large scale ethylene, formalin of petroleum chemical industry and some ...