Beijing YHJN Science and Technology Co., Ltd

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

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

rear interactive projectionrear interactive projection (bjyhjn)

interactive floorinteractive floor (bjyhjn)

interactive large touch screeninteractive large touch screen (cnhci)

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Beijing YHJN Science and Technology Co., Ltd
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