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      3. 91人人妻人人爽_国产精品久久久久久人妻精品动漫_欧美日韩综合精品_97久久久碰碰碰久久碰碰碰_来一水AV@lysav






        高純鎂砂:選用天然特級(jí)菱鎂礦石浮選提純輕燒、細(xì)磨、壓球、超高溫油豎窯煅燒燒而成。是制磚、不定形耐火材料優(yōu)質(zhì)原料。
        牌???號(hào)
        Brand
        理化指標(biāo) Phsical? and chemical? ?Specification 顆粒組成
        Size(mm)
        Mgo(%)≥ SIO2(%)≤ Cao(%)≤ Fe2O3(%)≤ lgL%≤ B.D(g/cm3)
        DBM-97.5 97.5 0.6 1.2 0.7 0.3 3.27 0-30
        DBM-97 97 0.7 1.4 0.8 0.3 3.25
        DBM-96.5 96 1.0 1.4 0.8 0.3 .32