Sanjack: Your Premier Choice Of drilling pipe

Sanjack has abundant manufacturing experience in API 5DP drilling pipes. Since its establishment, Sanjack has always insisted on taking the market as the center, taking R & D as the driving force, and constantly improving product quality.

Sanjack: Your Best China drilling pipe Manufacturer and Supplier

The company has passed ISO 9001, NOV and other quality certification systems.

Sanjack: The Advantages With Us You Should Know

Sanjack drilling pipe production mainly follows these steps:
Raw material test → raw pipe end heating → pipe end upset →
pipe body straightening →pipe bodγ and end inspection → upset pipe finished
Then for welding heat treatment it follows:
Austenite→quenching→temper→quenching→temper→
Non-destructive inspection→pipe and tool joint friction welding → annealing→welds processing→weld zone inspection→finished drill pipe