Welcome to Alliance Industry Limited ! 

Supplier of high quality valves

Alliance Industry
Drilling Field


Air Drilling is an engineering to drill into stratum used by mechanical equipment. According to the breaking rock mode and the type of mechanical equipment, we can divide it into two types: Percussion drilling and Rotary drilling. The oil industry usually use Rotary drilling.

Client Reference:

Underwater valve

Project: China
Size: Gate Valve 5-1/8'' 5000psi, HH PU PSL3 PR2 / Ball Valve 3-1/8'' 500LB, HH PU PSL3 PR2