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A kind of easy to clean oil sand filter
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A kind of terminal crimping mold with anti-fatigue device
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A kind of two-stage oil sand filter
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PCB clamping tool
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A kind of oil exploitation filtering sand apparatus
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A kind of arrangements for speed regulation of electromotor
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A kind of terminal crimping mold with protection device
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A kind of welding preventer
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A kind of petroleum drilling fluid vibrosieve
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A kind of oil field dehydration desanding device
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A kind of drilling fluid Vibratory Mixing equipment
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A kind of vehicle engine braking control system
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A kind of assembling die for producing wire rack
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