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20mm厚板上要打80萬個2mm孔,用什么方法較好 |
請教,20mm厚板上要打80萬個2mm孔,用什么方法較好
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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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