Click image to view full size image
Drill joints, reducer union, lock joints, oil drill pipe joints, crossover coupling blank joints.
drill pipes tool joint/ drilling joints/oil drill pipe joint
---high quality low carbon alloy steel as raw material
---By high pressure molding, the true air-conditioning and tempering treatment, the mechanical properties
Specification:
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 13-3/8"
4.Type: NU, EU(tubing coupling),LC,BTC(casing coupling).
5.Surface treatment: Whole phosphating, or inside phosphating and outside coating
drill pipes tool joint
