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機械制造紀實06—教人一技氣壞老板 |
點評
就是銑斜面。
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點評
以前生產條件限制。
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Archiver|手機版|小黑屋|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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