Sell API-5CT Casing, Tubing, Coupling.
Our factory manufacture Casing, Tubing:
According to API SPEC 5CT.
Steel grade: J55, K55, L80, N80, P110
Casing: From 5-1/2" to 13-3/8",
Threads: BTC, LTC, STC.
Length range: R1, R2, R3
If you interested in our products, feel free to contact with me.