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最近加工一批電機主軸45#調質HRC28-32°,端面加工3個直徑3.0+0.012精度的平底盲 |
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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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