... tubing for wellsNF M87-207: Petroleum and natural gas industries Steel pipes for use as casing or tubing for wellsJIS G3439 ... , M65, L80, L8013CR, C90, C95, T95, P110, Q125, V150Oil casing steel pipeSize: 73.1x5.51mm, 88.9x6.45mm, 114.3x6.35mm ... , please contact me.Thank you very much. Seamless Oil Casing Tube (API 5CT K55)