Baosheng International (Changzhou) Co.,Ltd.cover an area of 40,000 square meters with 350 employee,is specialized in manufacturing and supplying precision steel tubes,carbon and alloy steel tubes and stainless steel tubes.We have started steel tube business since early 1990s.now our service are mainly extended to European market,South America market,Middle East Market,and Southern Asia Market.After decades of efforts,we have the most experienced knowledge on how to manufacture the qualified steel tubes and we are trying our best every day to make a better perforamce and higher quality of our steel tubes.The followings are brief introduction of our tube business: Precision Steel Tubes (OD:4mm--120mm,WT 0.3mm--15mm)DIN2391,EN10305-1,EN10305-4,ASTM A 519,BS6323,etc.Carbon & Alloy Tubes (OD:12.7mm--1066mm,WT:1.65mm--120mm)ASTM A53,ASTM A106,ASTM A179,ASTM A192,ASTM A210,API5L,API5CT, DIN17175,DIN1629,EN10216-1,EN10216-2,etc.Stainless Tube(OD:0.35mm--530mm,WT:0.05mm--40mm)ASTM A213,ASTM A312,ASTM A249,ASTM A269, ASTM A270,ASTMA789,ASTMA554,DIN2462,DIN11850,DIN17456, DIN17458,EN10216-5,EN10217-7,etc.Bundy Steel Tubes (OD:4mm--12mm,WT:0.5mm-1.2mm)ASTM A254,C/WTL-222,SAE J526B/527B,JASO M101,etc.Shaped Steel Tubes (Dimensions:20mm--500mm,WT:1mm-14mm )ASTM A500,ASTM A252.EN10219,EN10210,EN10025,etc You are more than welcome to contact us for technical or business communicatio