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One kind is for low speed centrifuge device in oil exploitation
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A kind of automatic oil filling equipment for oil exploration equipment
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A kind of Downhole jetting device of petroleum production system
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A kind of wound rotor asynchronous motor and manufacturing method
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A kind of drying type electric submersible pump with segmentation waterproof system
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A kind of drying type electric submersible pump with collaboration sealing system
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A kind of metering feedway of oil exploitation
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A kind of oil-charging submersible electric pump with pressure-relief anti-self-destructive mechanism
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A kind of capacitor operating type motor stator and its manufacturing method
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A kind of low-temperature-rise energy-saving total-head electric diving pump
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A kind of explosion-proof type ultrahigh-efficiency three-phase asynchronous motor
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