Beijing YHJN Science and Technology Co., Ltd

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interactive floorinteractive floor (bjyhjn)

interactive projection,interactive surface, floor projectioninteractive projection,interactive surface, floor projection (bjyhjn)

interactive large touch screeninteractive large touch screen (cnhci)

interactive table, flipping bookinteractive table, flipping book (bjyhjn)

rear interactive projectionrear interactive projection (bjyhjn)

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Beijing YHJN Science and Technology Co., Ltd
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