China manufacturer api 5ct 3 1/2" J55 seamless steel pipe coupling

China manufacturer api 5ct 3 1/2" J55 seamless steel pipe coupling

Features:

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

2.Size: tubing coupling from 2-3/8" to 3-1/2"

3.Type:NU , EU

4.Placement:female

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

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

Technical Parameters

Certifications

Detailed Pictures