6931| 12
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不銹鋼圓柱上要鉆2.5mm的孔,請問用什么方法最快又能省鉆頭,用什么鉆頭最好 |
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Archiver|手機版|小黑屋|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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