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oil field pumping units,
oilfield sucker rods
High Strength Oil Well Drilling Tools API 11B Sucker Rod Polished Rod
Function of Polish Rod
Polish rod is a kind of special sucker rod connected with sucker rod and beam hanger. It is at the top of sucker rod, need to bear the most strength,so with bigger diameter and higher steel grade than sucker rod, and the surface is very smooth.
Combined with packing set in packing box to seal wellhead and prevent oil,gas,water disclosure.
Interim connector between sucker rod and mule head hanger.
Finishing indicator diagram test.
Complete various wellhead operation, such as pump striking, regulating pump setting.
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