... 3.WT:2- 80 mm 4.MOQ:20ton Specification:1.standard : ASTM JIS API DIN 2.Outer Diameter: 20 - ... 20 - 610 mm3.Wall Thickness:2-100mm4.Specification: ASTM A53 GR.B,ASTM A106 GR.B.A106 Gr.B etc.5 ... Seamless steel pipe:1. Standard:GB JIS DIN ASTM API and so on2. Application:the seamless steel ... Fourth,product Details StandardBS, JIS, GB, DIN, ASTM, APIStandardASTM A106,ASTM A53,10#,20# and so onGradeGr.B,X42 ...