Refractory materials are high performance materials that are designed to withstand extremely high temperatures and corrosive environments. They are commonly used for applications such as furnaces and kilns, and are also used in the glass industry to line glass-melting furnaces. AZS refractory bricks are a type of refractory material specifically designed for use in the glass industry. These bricks are made from a combination of alumina (Al2O3) and zirconia (ZrO2), which give them superior thermal shock, corrosion and erosion resistance.