【摘要】 通过对国内外抛光磨石的硬度，主要组成的成分、含量和组织结构进行分析、对比，找出了国内外抛光磨石的性能差别，提出了制作优质抛光磨石可供借鉴的方向和性能指标。更多还原

【Abstract】 The hardness,composition,contents and structure of granite abrasive in China for polishing were analyzed compared to those of granite abrasive from foreign countries.As shown by the results of difference of properties of the two kinds abrasive,the way to improve properties of Chinese abrasive for polishing was proposed.更多还原