... J55, K55, L80, N80, C90, T95 and P110 3.For casing The pub joints for casing and tubing, ... oil. The range of couplings extends from 2 3/8" to 20", under grades H-40, J ... K-55, L-80, N-80, C90, T95, P-110, Q125 etc. We also provides all kinds of ... .Per Carton1.9002,500-10 Round1.85--2-3/83.0632.9108 Round3.422.381,4442-7/ ... lb.)Per Carton1.9002.2003-3/410 Round1.231,9602-3/82.8753-3/410 Round2.821,5122-7/ ...