... :A,B,X42,X46,X52,X60, X65,X70 2.Operative Standard:API Spec Line pipe generally apply to oil or gas transmission ... .3-1016mm;3.Wall Thickness:1.7-52mm;4.Standard: API 5L;5.Standard level: PSL1 and PSL2;6.Application:Oil and Gas ... /T,L/C,D/P 12.Deliver Time:10-25Days API 5L steel tube