Click to enlarge image Oil tubing API seamless oil tubing Standard: API 5CT & 5B / ISO 11960 Product specification level: PSL1, PSL2 and PSL3. Size: 1.050, 1.315, 1.660, 1.900, 2.063, 2-3/8, 2-7/8, 3-1/2, 4, 4-1/2 inch Size 26.67mm, 33.40mm, 42.16mm, 48.26mm, 52.40mm, 60.32mm, 73.02mm, 88.9mm, 101.60mm, 114.30mm End type: EUE, NUE, plain end Grade: H40, J55, K55, N80, L80, C90, T95, P110 Length: R1-3 Seamless pipe Packing: bundles Protection of Thread: Thread protector Payment: T/T, L/C, D/P