Inner clamping structure, forming method of inner clamping structure and packaging box
The invention relates to the technical field of packaging, in particular to an inner clamping structure, a forming method of the inner clamping structure and a packaging box. The inner clamping structure comprises a first inner clamp, the first inner clamp comprises a containing part, a limiting par...
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Format: | Patent |
Sprache: | chi ; eng |
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