... many kinds of refractory castable, such as low cement castable, self flowing castable, high alumina castable, mullite castable, AZS castable, fireclay castable ... according with your application. Theses shapes include burner brick, cement kiln nose, alumina furnace roof, check wall shape, furnace seal blocks etc ... etc. And they are widely used in the metallurgy, steel, alumina, cement etc industry.