API 5CT N80 3 1/2 eue tubing couplings

All products will be made according to API and related international standard as per customers\' requirements.

Std Ref.:API 5CT and 5B ISO9001,2008

1.Grade:J55, K55, N80-1, N80-Q, L80, C90, P110

2.We also supply permium thread products by customer\'s request

3.Size: tubing coupling from 1.9\" to 4-1/2\",Casing coupling from 4-1/2\" to 20\"

4.Type: NU, EU(tubing coupling), STC,LC,BTC(casing coupling).

5.Surface treatment: Whole phosphating, or inside phosphating and outside coating