Hunan Standard Steel Co., Ltd (HSCO) is an API and ISO 9001: 2008 qualified company based in China invested by Singapore Rainbow Offshore, we specialize in manufacturing Seamless Steel Pipes. Following are our main products for your reference. 1. Seamless Carbon steel pipe: ASTM A106/A53 GrB/API 5L GrB 2. Oil line pipe: API 5L GRB/X42/X46/X52/X56/X60/X65 3. OCTG oil casing & tubing pipes: API 5CT J55/K55/N80/P110 4. Drill pipe: API 5DP E75/X95/G105/S135 5. Low temperature steel pipe: ASTM A333 Gr.6 6. Boiler tube: ASTM /ASME A179/A210/A192/A213 7. High temperature alloy steel pipe: ASTM A335 P1/P2/P5/P9/P11/P12/P22/P91 Do you have any procurement plan or inquiry for SMLS steel pipes recently? If you are looking for a reliable supplier, please give it a try and contact us, we might surprise you! Contact info: Ella Chen (Ms.) ella(at)hu-steel.com husteelpipe(at)gmail.com Phone No. / Whatsapp: +86 15243681531 Skype：zoechen1995 Official Website: www.hu-steel.com www.hunanpipe.com www.husteel-group.com China Office address: 22nd floor golden tower, Changsha West International Central Mansion, Yuelu District, Changsha, Hunan, China. Singapore Office address: 7 Neythal Road, Singapore 628574
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