| 摘要 |
A key sheet (11,21,31,41,51) includes a base sheet (12,22,32,42,52) and a plurality of key tops (3) arranged on the base sheet (12,22,32,42,52). The base sheet (12,22,32,42,52) includes an elastic member formed of a rubber-like elastic body and a light-reflective reinforcing member (10,20,30,40,50). The light-reflective reinforcing member (10,20,30,40,50) having at least one surface constitutes the metal-containing face. <IMAGE>
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