| 摘要 |
A polishing bath is charged with polishing materials so that workpieces may be barrel-polished. Supporting members for holding the workpieces in the polishing bath are provided and are set under their free or rotatable condition. According to this barrel polishing operation, the workpieces are prevented from colliding against one another during the polishing operation, thus raising no fear of forming the products with scars and dents.
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