... J55, K55, N80, L80, T95, , 5" oil casing pipeCasing and Tubing Standard: API 5CT,Carbon Steel5"ZS300MeterLength: R2, R3.Application: serves as ... : J55, K55, N80, L80, T95, 7" casing pipeCasing and Tubing Standard: API 5CT,Carbon Steel7"ZS300MeterLength: R2, R3.Application: serves as ... API SPEC 5CT Tubing is used in extracting petroleum & natural gas. casing pipe serves as wall of well.3, ASTM A106 For ...