API 5L grade B X42 1) ISO9001,API 2)OD:60.3-219.1* ... .2-25.4,DN50-200*3.2*25.4 3) B,X42,X52,X60 4) length:2-12m API 5L gr ... B,API 5L B,X42Pipeline/ line tube/pipeline tube/line pipe1. Application:Convey ... .2-25.4,DN50-200*3.2*25.44. Grade: B,X42,X46,X56,X65,X705. Techniques: hot rolled and cold ... 's require.7. ERW,SSAW,Seamless steel pipe API 5L B,X42 line pipe