k55 oil tubing 1.J55,K55,N80,L80,P110 steel grade 2.OD:60.3-114.3mm,WT4.83-12.75mm 3. ... NUE,EUE end form 4.length:R1,R2,R3 k55 oil tubing1.J55,K55,N80,L80,P110 steel grade2.OD:60.3 ... .95L,P6.45EU7.35C,L8.53EU7.45L,P8.53EU73.02(2 7/8")6.40H,C,N,L,P5.51NU6.50H,C,N ... ,N,L,P7.82EU9.45L,C8.64EU88.90(3 1/2")9.20H,J,C,N,L,P6.45NU9.30H,J ... .74NU11.00H,J,C,N,L6.65EU114.30(4 1/2")12.60H,J,L,N,C,T12.75NU12.75H,J ...