Hydraulic flat valve
Gear plate valve
Flange connection ( forging ) flat valve
Reducing flange
Wear bushing
Cylinder bottom
手液聯動閥
The mandrel hanger ( thread )
JZ50L drilling rig winch axle and axle
The four wing door type throttle pipe
Threaded flange
Single plug cement head
Hand, hydraulic safety valve
Multifunctional test tube department
WE type slip hanger
FC valve ( the valve seat can be floating plate valve )
Dividing head
Stage casing head
Mud manifold
G type slip hanger