... ")*6-18mm 3.A,B,X42-X70,Q235B 4.Line pipe Standard: API 5L,GB/T9711,GB/T3091Material: Gr.B,X42 ... ,L245,L290,L360,L415,L485.etcBesides SSAW steel pipe, we can also supply the ERW steel pipe,Seamless steel pipe.Casing tube and so on.The ... /8”*0.312”-0.545”)CouplingOD153.67mmOD194.46mmOD244.48mm spiral steel pipe