API 5CT OCTG Casing Pipe Standard: API Standard: API 5CT Grade: API J55- ... : 15-60 days . Specifications 1. Provide API 5CT OCTG casing pipe 2. Hydrostatic/UT tested; heat treatment applied NPS: 4 ... exporters of OCTG and line pipe for crude oil and natural gas delivery in China, we topped the export amount of ... GrB, API 5L GrB/X42/X46/X52, OCTG oil casing and tubing API 5CT J55/K55/N80/P110, OCTG drill ...