product Overview: 　　High-alumina brick for hot-blast furnace is a refractory product which is calcined high-quality high-alumina bauxite clinker and binder first through granulation and pulverization processes, mixed in a certain proportion, and then press-molded and fired at high temperature. According to the physical and chemical indicators, it is divided into three brands: RL-65, RL-55, and RL-48. Mainly used for masonry hot blast stove wall.