jack-pump
... Jack operating lever千斤顶利用杆 Jack pump油矿泵 Jack screw千斤顶丝杠 ...
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本实用新型公开了一种高压洗井泵，属石油矿场清洗设备。
The utility model discloses a high pressure pump for well washing, and pertains to the oil field cleaning device.
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