2313| 3
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尋高耐磨鍛鐵件 |
點評
這材料的比重在12左右,球墨的比重有這么高嗎?
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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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