| 摘要 |
A mold for molding discs includes a outer stamper retainer with an outer peripheral retaining foot to closely contact on the surface of a stamper not to permit compressed air to lead outwards and an inner peripheral retaining foot to contact permit compressed air for releasing molded discs from the stamper to be blown through a groove located between the both feet resulting in increasing the performance of compressed air for releasing molded discs from the stamper.
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