6396| 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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小黑屋|手機(jī)版|Archiver|機(jī)械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,,浙公網(wǎng)安備33038202004372號 )
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