Specification:oil casing steel pipe 1)Size:114.3-397.3mm 2)Grade:J55, ... : bundle or bulk Material grade: J55, K55, N80, L80, T95, 7" casing pipeCasing and Tubing Standard: API 5CT,Carbon Steel7"LUYE30MeterLength ... : bundle or bulk Material grade: J55, K55, N80, L80, T95, 7 5/8" oil casing pipeCasing and Tubing Standard: API 5CT ... of win-win. API 5CT J55/K55/N80 oil casing steel pipe