MAL made primarily of magnesia, with a few high alumina bauxite, pressed under high pressure and produced by medium temperature firing. It is an upgrade of pure magnesia brick. Compared with magnesia brick of same substrate, it has higher RUL, resistance to slag penetration and thermal shock as well as high temperature mechanical flexibility.
It is widely used as working lining and safety lining at non-critical parts of traditional metal smelting furnace(such as open-hearth furnace, convertor and non-ferrous smelter) as well as small and medium size glass regenerator.