无心金刚石砂轮修整Ҏ(gu): ?b class="gan10i4u271">H?/b>法A。用Y?未硬?Q红铜或者不锈钢Q?利用q些?/span>料的韧性以柔克刚, 要修U?0分钟? Ҏ(gu)B??/span>钼金属修Q?要修U?0?span class="e3q1sf0dph">来自钟, 但钼金属较贵?技? 整。心?b>金刚石砂?/b>修整Ҏ(gu):Ҏ(gu)?/b>A。用Y?未硬?Q红铜或者不锈钢Q?利用q些材料的韧性以?/span>柔克刚, 要修U?0分钟?Ҏ(gu)B??span class="pg00x4s98">?/span>钼金属修Q?要修U?0?span class="lz68tc04">钟,?b>无心金刚石砂轮修整Ҏ(gu):Ҏ(gu)A。用Y?未硬?Q?span class="n8n06q0hgjt">U铜或者不锈钢Q?