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Wall drilling equipment for construction
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Water flow temperature induction control valve
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Automatic retarding prompt drop device and high-rise fire keep away cigarette rapidly descending escape system
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A kind of craft makes pancakes tool
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A kind of displacement monitoring safety warning system
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A kind of liftable furred ceiling with function of containing articles
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A kind of liftable locker with furred ceiling function
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A kind of car steering auxiliary system
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Interventional medical device and ultrasonic developing assembly
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