| 摘要 |
PROBLEM TO BE SOLVED: To provide a blank panel to which a sack is attached which is superior in erecting for forming a box, in assembling a top part and a bottom part, and in sealing. SOLUTION: This relates to a blank panel to which a sack is attached having a pair of inward folding flaps and a pair of outside folding flaps for forming a top part and a bottom part. A projection projecting toward the outside folding flap is formed on the inward folding flap.
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