alumina bricks manufacturer, producing high-quality alumina bricks. we have professional engineers and advanced technical guidance. We also have a lot of export experience. We can export cheap alumina bricks Alumina bricks are a common refractory material and contain more than 48% alumina. They are neutral refractory materials. The bricks are made from bauxite or other high alumina raw materials by molding and firing. They have high thermal stability and can withstand high temperatures above 1770 C. alumina bricks are characterized by high refractoriness, high strength, resistance to acid attack and good thermal stability. alumina bricks are mainly used as linings for building electric iron furnaces, glass kilns or cement rotary kilns.