No matter be the cares very much issue that still uses firebrick what do firebrick,the compression strength that how increases firebrick believes, small today make up will tell everybody way.
What need to do first is the pressure that raises high-pressured brick forming machine, the density that can let a brick so rises, burn the nature of bricky compression intensity that give to be met so tall. What need an attention additionally is, when the brick is firing, give pit not in time, give a brick the time of a bit heat preservation, its compressive strength can grow somewhat likewise.