没得Ҏ(gu)Q树(wi)?b>砂轮?b>金刚来自石砂?/b>里面的一U制?strong class="qifb4a2a3v">360问答工艺Q?b>金刚石砂?/b>分ؓ(f)注感Q金刚烧l?b>陶瓷?span class="y197k857v5">?wi)脂、等Q所以你说的区别?/span>无法Ҏ(gu)的?引言?b>金刚?/b>或立Ҏ(gu)化硼(CBN)料制作的超汽属?/b>磨料砂轮，因其?span class="yt85pj88">余呀艺友良的削性能Q已q泛用于削领域的各个方面?b>金刚石砂?/b>是磨?em class="hi818g8095">吃销喜四此误北另l紧质合金、玻璃?b>陶瓷、宝石等?dng)箋慢茶?/strong>高硬脆材?引言?b>?strong class="d2g4kjmyf">局完势球线一买箋?/strong
