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Shenji Oilfield Shengli Petroleum Equipment Co., Ltd.
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Dongying City, CN
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Patent Application
PLUNGER FOR LIFITING FLUIDS WITHIN A TUBING STRING
Publication number
20160237795
Publication date
Aug 18, 2016
Shenji Oilfield Shengli Petroleum Equipment Co., Ltd.
Zhang Xiqing
E21 - EARTH DRILLING MINING
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