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Direct combination of Mg-Chrome Brick for Rotary Cement Furnace Brand No. Magnesia Composition(%) A.P. (%)≤ B.D. (g/cm3)≥ C.C.S MPa≥ 0.2MPa Refractoriness Under Load(°C)≥ MgO (%)≥ SiO2 (%)≥ Cr2O3 (%)...