... 17-1219.2mm 3.WT:1-30mm 4.Steel grade: A.B.X20---X70 5.ISO,API 5L PSL2 api 5l psl2 ... steel pipe1)Standard: ASTM, API 5L .2)Material:API5L Gr B, X42-X80,P110 and so on3)Length:6M-14M,R1 ... steel pipe1)Standard: ASTM, API 5L .2)Material:API5L Gr B, X42-X80,P110 and so on3)Length:6M-14M,R1 ...