Product Name: Casing and Tubing Coupling
Standard: API 5CT&API 5B
Outside Diameter: 2 3/8"- 20"
Steel Grade: J55, K55, L80, N80, P110.
Type: STC /BTC/ LTC/NUE/EUE
Painting Inside Phosphate Treatment & Outside coating
Standard Export Package: wooden pallet or carton boxes