| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine excellent in recyclability. SOLUTION: A front frame is openably attached to an outer frame 1 and an upper tray is attached to the front frame. A lower tray 14 is attached to the outer frame 1. This arrangement enhances recyclability because the upper tray which often degrades in quality is replaced, together with the front frame of low versatility, while the lower tray 14 which seldom degrades in quality can be reused, together with the outer frame 1 of high versatility.
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