good quality and low price API 5L Gr B Seamless Carbon Steel Pipe oil casing pipe 1. ... WT: 5.21-11.43mm 3.Material:A25,A,B,X42,X46,X52,X56,X60,X65,X70,X80 H40 ... J55 K 55 M65API 5L Gr B Seamless Carbon Steel Pipe 1.Item: petroleum ... pipe2.Standard: API5L AND API5CT3.Grade: A25,A,B,X42,X46,X52,X56,X60,X65,X70,X80 H40 J55 ... K 55 M65 N80 L 80 C 90 T 95 ...