?wi)脂_结?参考答??wi)?strong class="yfzs9x2v">饭n?/strong>_结 ??wi)脂??sh)镀??sh)镀?参考答??sh)镀 ?br>青铜。参考答?青铜。即单层?span class="j34tl5e1">温钎焊超磨?/span>砂轮Q目前国内这U砂?span class="e7s5f4am6s6">?/span>q处于研制开发阶Dc(din)?烧结?b>?span class="b3q858">密伟木延施底秋?/span>刚石砂轮烧结型金属结合剂砂轮多以青铜{金?span class="i24s9ro">作ؓ(f)l合剂，用高温烧l法刉，其结合强度高。即单层高温钎焊硬?span class="r94f1609b0">?/span>砂轮Q目前国内这U砂轮还鲜住处于研制开发阶Dc(din)?烧结?/span>金刚石砂?/b>烧结型金?stro
