4682| 10
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急尋高硬度高耐磨耐高溫的非金屬材料,請推薦! |
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硬度有問題嗎?
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Archiver|手機版|小黑屋|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
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