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Novel safe sill
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Station arrival reminder
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Eyesight testing device
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Writing brush
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Safe door lock
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Drowning-preventing alarm
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Telescopic sunshade
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Sticky portable bag
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Water saving alarm
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Cleaner
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A safe wiring board
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Multifunctional beverage bottle
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Heat-preserving lunch box
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Water dispenser
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Special scissors for shearing small holes
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Multifunctional chalk holder
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Safety-type lighter
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Saline bottle with reminding function
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Foldable desk
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Sunglasses special for blind people
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