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A kind of automatic sensing rolling screen door
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A kind of device convenient for VR experience
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A kind of soundproof door
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A kind of safety automation staircase
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A kind of market novel monitoring camera
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A kind of antitheft brush device of bank finance equipment card-reading slot
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A kind of fingerprint capturer
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A kind of anti-theft type aluminum alloy doors and windows
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A kind of key and its matched lock with password
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A kind of leather processing equipment
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