High alumina brick High alumina bricks main raw material is high alumina,which is chosen,screened,removing iron and sintered.The acid- ... .S,MPa≥53.949.044.139main raw material is high alumina,which is chosen,screened,removing iron and sintered.The acid ... .Porosity,%≤2322C.C.S,MPa≥53.949.044.139 High alumina brick