... or bulk Material grade: J55, K55, N80, L80, T95, , 5" oil casing pipeCasing and Tubing Standard: API 5CT,Carbon Steel5"ZS300MeterLength: R2 ... bundle or bulk Material grade: J55, K55, N80, L80, T95, 7" casing pipeCasing and Tubing Standard: API 5CT,Carbon Steel7"ZS300MeterLength: R2, ... oil&gas industry.2, API SPEC 5CT Tubing is used in extracting petroleum & natural gas. casing pipe serves as wall of ...