... seamless steel water pipe 1.large steel pipe weight 2.OD:1/2-10" 3.Thickness:1.2-12mm 4.Standard:ASTM A53 1. ASTM A106 seamless steel ... X46, X52, St37, St44, St52,StandardASTM Standard:ASTM A53, ASTM A106, API 5L, ASTM A179, ASTM A210, ASTM A333 ... Welded (EFW)Double Submerged Arc Welded (DSAW)TypeSeamlessWelded Line TypeSeamlessSection ShapeRoundInspectionWith Hydraulic Testing, Eddy Current , Infrared ...