API 5CT Casing OD:60.32-508mm Steel grade: J55, K55, L80, N80, C95, P110 Threads: BTC, LTC, STC Length range: R1, R2, R3 API 5CT CasingOD:60.32-508mmSteel grade: J55, K55, L80, N80, C95, P110Threads: BTC, LTC, STCLength range: R1, R2, R3 API 5CT Casing