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Line production system based on RFID
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The RFID tag and rfid chip module of expansible antenna
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Lock pin mechanism used for door/window sash top and bottom rods and mother-child door
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Door/window drive mechanism
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Power window actuating mechanism
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Auxiliary lock with hook bolt
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Vice lock provided with hook lock tongue
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Large-opening blind hinge assembly and security door with large-opening blind hinges
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Electric door and window actuating mechanism
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Torsion-resistant lock plug
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Safety door lock
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Safe square shaft
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The square shaft bindiny mechanism that anti-brute force is unblanked
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Locking control mechanism for automatic door lock
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