Oil pipe coupling
Tubing coupling
Standard: API Spec 5CT
Size: 1.050", 1.315", 1.660", 1.900", 2.063", 2-3/8", 2-7/8", 3-1/2", 4", 4-1/2"
Type: NUE, EUE
Grade: J55/K55, L80, C90, C95, N80-1/ N80-Q, T95, P110, Q125
Packing: wooden case, wooden pallet, or by requirements of customers
Payment: L/C, T/T

Oil casing coupling
Size: 4-1/2"-20"
Standard: API 5CT & API 5B
Grade: J55, K55, L80, C90, C95, N80,T95, P110, Q125
Type: LTC, STC, BTC, Premium connection
Packing: wooden case, wooden pallet, or by requirements of customers
Payment: L/C, T/T