3124| 7
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關于靜壓膨脹芯軸 |
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點評
嗯 , 這個倒是肯定的先把孔干了然后焊接上,整體車、磨外圓
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小黑屋|手機版|Archiver|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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