... prove 3.To Bolivia,Indonesia,Russia,South America,ect N80 API oil casing pipe Advantage1. High precision in size and ... : EUE, NUE, LTC,STC,BTC3) Steel grade: J55, K55, L80, N80, P110 type of oil casing pipe thread 1.OD: 10.3-1219.2mm ... X60,X65,X70,X80 H40 J55 K 55M65 N80 L 80 C 90 T 95 P110 Q125 CS-90 SCS-95 ... SCS-80 TCS-110TApplicationused for natural gas and Oil ...