The magnesium oxide contained in the magnesia carbon brick is determined by what material is used. The common magnesia carbon bricks are mainly 72% magnesia, 74% magnesia, 76% magnesia, 80% magnesia, 82% magnesia, 85 % Magnesium oxide, magnesia carbon brick listed company, the main raw materials used in the production of magnesia carbon bricks are fused magnesia, graphite, metal aluminum powder, metal silicon powder, liquid phenolic resin, which is stirred by a sand mixer and pressed by a press. Magnesia carbon bricks are used in refining ladle slag lines, and magnesia carbon bricks are also used in the lining of AC electric arc furnaces, DC electric arc furnaces, and converters.