| 摘要 |
This invention relates to a knob of a corrugated cardboard packing box which can prevent a danger of an external appearance of a packing box, has a cutting part 103 being cut, a bending part 105 connecting both edges of the cutting part 103, holes 110 formed between both edges of the cutting part and the bending part, for dispersing a stress applied in both edges of the cutting part 103.
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