The furnace lining material is made of high-quality high-purity magnesia, brown corundum, white corundum, quartz sand and other high-grade refractory materials with optimized particle ratio, plus high-quality additives and chemical binders, elaborately prepared according to different smelting temperatures and materials. It has extremely high fire resistance and high-temperature strength. Mainly used for melting materials such as high manganese steel, tool steel, alloy steel, stainless steel, etc. Suitable for small, medium-sized, and other medium frequency electric furnaces.