3734| 8
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齒輪加工工藝 |
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點評
大俠,,這里說的鉆孔是指鉆什么孔
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點評
謝謝
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點評
有道理,,看的資料,,也沒有圖紙
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小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,,浙公網安備33038202004372號 )
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