structural steel pipe with ASTM A106 GradeB 1.standard: ASTM JIS API DIN etc 2.OD: ... - 610 mm3.Wall Thickness:2-100mm4.Specification: ASTM A53 GR.B,ASTM A106 GR.B.A106 Gr.B etc.5.End Type: BE PE6.Place of Origin: China7 ... StandardBS, JIS, GB, DIN, ASTM, APIStandardASTM A106,ASTM A53,10#,20# and so onGradeGr.B,X42,X46,X52,X56,X60,X70,X80 ...