4611| 13
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M12的螺母粗糙度問題 |
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點評
你可以銑螺紋啊,效率高成本低。粗糙度可控
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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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