2835| 7
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新型墻體材料模具采用什么材料,模具壽命大概多少萬次? |
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點評
為了環保,國家逐步淘汰粘土燒結的紅磚。采用煤矸石、粉煤灰、頁巖等材料用模具成型后燒結而成的空心磚等
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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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