... injected according to the required proportion. 3.YAOXING mullite brick is compressed in vacuum and sintered under high temperature ... , reproduction equipment, hot blast stove, heating furnace, even-heating furnace, heat-processing furnace,resisitance furnace, tunnel kiln, shuttle kiln, bell-cover kiln ... conductivity(350C)(W/m.k)0.16-0.43Al2O3(%)≥38-79Fe2O3(%)≤0.5-1.0Specification(mm)230*114*65Packing ...