API 5CT tubing pup joints
1)Size:OD:2-3/8"~ 4-1/2"
2)Grades:N80,J55,K55,L80
3)Standard:API 5CT & 5B
4)Competitive price

We have implemented stringent quality control tests system to inspect raw materials and examine products in every stage of the production :
Size and surface inspection
Non-destructive test
Thread inspection
Hydrostatic test
Drifting test
Physical and chemical analysis
Hardness and pressure test