... .Technical Specification:Item TypeMH-1MH-2MH-3Chemical composition, %Al2O320-80Al2O3±SiO2≥90Fe2O3≤1Pore size , μm0.5-3540-100110-1000Porosity, %20-3015 ... .2-0.81-67-50Acid resistance, %≥98≥98≥96Alkali resistance, %≥85≥85≥80Thermal shocking resistance, (T)800800800Crushing strength, N100-12000Deferent upon types ...