export world rongsheng magnesia chrome bricks
The main raw materials for the manufacture of magnesia chrome bricks are sintered magnesia and chromite. The purity of the magnesia raw material should be as high as possible. The requirements for the chemical composition of the chromite ore are: Cr2O3: 30-45%, CaO: ≤ 1.0-1.5%. Magnesia chrome brick has a refractoriness of more than 2000 ° C ...
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