... 80,C-90,C-95,P-110,Q-125,Type of End-finish: Plain, BTC, LTC,STC ... R1, R2, R3------------------------------------------------------------------------------------------------------------------------Specification API Oil pipe, Casing pipeTypeLabel 1(in)Outside diameter(mm)Wall thickness(mm ... company is specializing in the process of oil casing, tubing, casing coupling, pup joint, reducer union, drill pipe ...