12156| 7
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線割穿絲孔最小能加工到多少啊? |
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點評
0.25的銑刀要哪兒買? 0.2鉆頭打孔時轉速要多少?
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小黑屋|手機版|Archiver|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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