Gear plate valve
Hydraulic flat valve
Flange connection ( forging ) flat valve
Reducing flange
Wear bushing
Cylinder bottom
手液聯(lián)動(dòng)閥
The four wing door type throttle pipe
The mandrel hanger ( thread )
JZ50L drilling rig winch axle and axle
Threaded flange
Hand, hydraulic safety valve
Single plug cement head
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
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