4810| 14
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齒條零件加工方式的選擇 |
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點評
我更傾向用棒料
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點評
有一個不清晰的圖紙
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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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