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公开(公告)号:US5782939A
公开(公告)日:1998-07-21
申请号:US908567
申请日:1997-08-08
摘要: Substantial cost saving can be realized in a coated abrasive structure employing a plurality of layers of particulate material, if at least one of the under-layers of particles is provided by a layer of ground glass.
摘要翻译: 如果颗粒底层中的至少一层由磨玻璃层提供,则可以在采用多层颗粒材料的涂覆磨料结构中实现显着的成本节约。