Drying box and packaging box
The utility model belongs to the technical field of drying, and particularly relates to a drying box and a packaging box, the drying box comprises a box body, a box cover, a drain valve and an allochroic silicagel desiccant, the box body is of a transparent structure and is provided with an open con...
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Format: | Patent |
Sprache: | chi ; eng |
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