Baosheng International (Changzhou) Co., Ltd is a professional steel tube manufacutuer and supplier We provide our customer good quality product with reasonable and competitive prices at the soonest time.We have offered tubes and services to South Korea, Germany, France, Austria, UK, Spain, Italy, Turkey, India, Iran, Chile, Brazil, Saudi Arabia etc Business Scope:Seamless Precision Tubes, Welded Precision Tubes, Carbon& Alloy Steel Tubes, Welded Stainless Tubes, Seamless Stainless Tubes, Bundy Steel Tubes etc. Carbon Steel Tube Standards: OD 4mm-114.3mm, WT 0.5mm-12.7mm German Standards:(DIN2391, DIN2393, DIN1629, DIN17175, DIN2394 etc) American Standards:(ASTM A53 ASTM A519, ASTM A106, ASTM A179, ASTM A192, ASTM A210, ASTM A213, ASTM A254, API 5L, API 5CT) European Standards:(EN10305~1, EN10305~2, EN10305~4, EN10216~1, EN10216~2 etc) British Standards: (BS3059~1, BS3059~2, BS3623~4, BS3602~1etc) Japanese Standards:(JIS3454, JIS3461, JIS3445 etc) Stainless Steel Tubes Standards:OD 2mm-114.3mm, WT 0.2mm-12.7mm American Standards: (ASTM A213, ASTM A312, ASTM A249, ASTM A269, ASTM A270, ASTM A511, ASTM A268, ASTM A789, ASTM A790 etc) German Standards:(DIN18456, DIN17458, DIN17459, DIN28180 etc) European Standards:(EN10216-5, EN10217-7 etc ) If you have any questions, please visit our website ***** or contact us by email, you are always welcome!