| 摘要 |
PURPOSE: A can which is easily crushed is provided to minimize the volume thereof when being crushed. CONSTITUTION: A can which is easily crushed has a spiral line to enable easy crush. The can is more easily crushed by forming the spiral line at an existing can. A spiral line of forward direction is formed at an upper portion of the can, and a spiral line of backward direction is formed at the lower portion of the can.
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