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Seamless Steel Pipes/Tubes/Tubing Seamless steel pipes are used for general structure, mechanical structure, water wall panel, economizer, super heater, boiler and heat exchanger with seamless steel tubes, and for pipelines transmitting water, natural gas, and petroleum, etc. Our seamless pipes are available in various wall thicknesses and diameters. We are among the leading manufacturers and suppliers of SMLS steel pipes, tubes, or tubing in China, welcomed by customers in many countries of the world.   Quality Standard:  API 5L Standard Specification for Seamless Line Pipe or Seamless Pipe Line ASTM A 53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless ASTM A519 Seamless Carbon and Alloy Steel Mechanical Tubing  ASTM A106 Seamless Carbon Steel Pipes for oil pipeline and gas pipeline transportation  JIS G3441 Alloy steel tubes for machine purposes  JIS G3444 Carbon steel pipes for general structural purposes  JIS G3445 Carbon steel tubes for machine structural purposes  DIN 2391 Seamless Precision Steel Tubes  EN10305 Stainless steel pipe for precision applications. Technical delivery conditions. Seamless cold drawn tubes EN 10210: Seamless structural steel pipes   Steel Grade:  API 5L: Grade A, Grade B, X42, X46, X52, X56, X60, X65, X70, X80 ASTM A 53: Grade A, Grade B, Grade C, Type F, Type E ASTM A519: 1010-1045, 4130-4142, 5135 JIS G3441: SCM 415 TK, SCM 418 TK, SCM 420 TK, SCM 430 TK, SCM 435 TK, SCM 440 TK  JIS G3444: STKM 11A, STKM 12, STKM 13, STKM 14, STKM 15, STKM 16, STKM 17, STKM 18 STKM 19, STKM 20 DIN 2391: St30Si, St30A1, St35, St45, St52 EN10305: E235, E355  EN 10210: S235JRH; S275J0H, S275J2H; S355J0H, S355J2H; S275NH, S355NH; S275NLH, S355NLH    

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