Detailed Product of API Casing Description : 1) Sizes: OD 4 1/2"-13 3/8" 2) Grade: J55, K55, N80, L80, T95, P110 3) Type of threading: STC, LTC, BTC 4) Length: R3 10.36-12.20 (34"-40") 5) Standard: API 5CT, API 5B