10312| 25
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求問:有沒有這種材質,與軸相對轉動,有較好的耐磨性,與軸摩擦不產生較大聲響 |
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點評
哈哈哈
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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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