Models                                                    Features

2-3/8"EU*2-7/8"EU                           1.External thread

                                                          2.Reducing coupling

                                                          3. Having Good Sealing Property

2-7/8"NU*3-1/2"NU

3-1/2"NU*3-1/2"EU

2-3/8"NU*2-3/8"EU

2-7/8"NU*2-7/8"EU

2-3/8"EU*2-7/8"NU

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 fro4-1/2" to 13-3/8"

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

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

6. Packing: by carton, wooden case, wooden pallet, or by requirements of customers

Contact:Bonnie Xu