| 摘要 |
PROBLEM TO BE SOLVED: To provide a shoe insole which surely prevents connecting parts of hard plates from treading a nail through. SOLUTION: A shoe insole preventing treading a nail through, comprises at least two or more divided hard plates 1a, 1b, 1c which are connected and can be folded each other, and the connecting parts 2 are coated by coating parts 3.
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