High alumina brick High alumina bricks main raw material is high alumina,which is chosen,screened,removing iron and sintered ... -resistance,alkali-resistance are good.And the refractoriness is high.It can be used in blast furnace,hot-blast ... -resistance,alkali-resistance are good.And the refractoriness is high.It can be used in blast furnace,hot-blast ... ,%≤2322C.C.S,MPa≥53.949.044.139 High alumina brick