Pole pipe integration vacuum oil -well pump
The utility model discloses a pole pipe integration vacuum oil -well pump, including plunger and pump barrel, the plunger slides and sets up at the pump barrel intracavity, and the upper end of pump barrel passes through that the hanger is fixed to set up on set tube cavity inner wall its characteri...
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Main Authors | , , , , |
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Format | Patent |
Language | Chinese English |
Published |
22.02.2017
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Subjects | |
Online Access | Get full text |
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