5444| 11
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車床導軌沒硬度。 |
點評
高精度的,一般淬火后需要在磨削加工哈,保證精度。
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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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