magnesia brick by sinter magnesite as raw material, the reasonable gradation, high pressure forming, high temperature sintering. This product is relatively slag corrosion resistance. End of magnesia bricks mainly used in steel-making basic open-hearth, electric furnace and the furnace walls, permanent oxygen converter lining, non-ferrous metal smelting furnaces, high temperature tunnel kilns, calcined electro magnesia brick and cement kiln liner, bottom of heating furnace and the furnace walls, glass furnace regenerator checkers