seamless carbon steel pipe: 1.material:Astm a 53/106/ API 5LA/B, ... and guide the development of product technolog orientation. SeamlessPipeTypeseamless carbon steel pipeSize1/2"-32"Wall thicknessSch5-Sch160XXSStandardASME B36.10M-1996 , ... GRB/ API 5 CT /Q345/A335/ST37/ST52Packagingpainting black, pipe cap, steel strips bundled.Applications range petroleum, construction ,shipbuilding,smelting, aviation ...