It is composed of high-quality dead-burned magnesia and other basic materials with reasonable particle size grading. The product has good sintering and corrosion resistance, low rebound rate and high adhesion rate during construction, which is convenient for gunning operation. It is suitable for hot zone, slag line, furnace slope, side wall and tapping of electric furnace and ultra-high power electric furnace It is an ideal supporting material to make the furnace lining achieve uniform erosion and improve the service life. Light Burnt Magnesium Ball