API 5B Tubing Coupling/Casing Coupling
Product ID: coupling-001
API 5B Coupling
GRADE: J55, K55, N80-1, N80-Q, L80, C90, P110,Q125;
SIZE: Tubing coupling from 1.050" to 4-1/2", Casing coupling from 4-1/2” to 20”;
TYPE: NUE, EUE (tubing coupling), STC, LC, BTC (casing coupling).
SURFACE TREATMENT:Whole phosphating, or inside phosphating and outside coating
PACKING: By carton, wooden case, wooden pallet, or by requirements of customers.
- API SPEC 5CT/ISO11960
Main Products:
Oil Casing, Tubing, Line Pipe, Seamless Steel Pipe, Coupling,Pup joint
