... Grade: H40, J55, K55, N80, M65, L80, L8013CR, C90, C95, T95, P110, Q125, V1503. Process: ERW and Seamless4. SizeOuter Diameter: Casing ... .1B H40, J55, K55, N80, M65, L80, L8013CR, C90, C95, T95, P110, Q125, V150Oil casing steel pipeSize: 73.1x5.51mm, 88 ...