| 摘要 |
PROBLEM TO BE SOLVED: To obtain trustworthy information for judging the handling of a product during transportation. SOLUTION: A packing device for packing a product 1 is mounted with a transport hysteresis recording means 4 comprising a temperature hysteresis recording means which irreversibly changes colors by the change of ambient temperature, a shock hysteresis recording means structured breakable by a load when shock is applied, and a direction hysteresis recording means for recording if the top face of a packing device is left downward for a long time.
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