... , N We supply all sizes and grades of casing and tubing, both Seamless and ERW.Manufacturing methodCold Drawn or Hot-rolled ... , P110, Q125 API Connections Round thread(8tpi, STC and LTC), Buttress thread (5tpi, BTC) Non upset (NUE), External upset (EUE), Round ... applications Special bevel; 20° bevel Slotted (Screen casing)Flush JointMacaroni tubing 1.05”, 1.315”, 1.66”Resilient seal (SR 13 ...