3041| 4
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師傅說擴孔鉆可以自動定心,對嗎? |
點評
浮動鏜可以同心,擴孔要差一點。。。
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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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