20605| 13
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軸承外徑是正差嗎?內徑是負差嗎? |
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評分 | ||
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一般
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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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