sintered mullite is choosed the natural high-quality bauxite, through multi-level homogenization, calcined at over 1750 degre Sintered Mullitesintered mullite is choosed the natural high-quality bauxite, through multi-level homogenization, calcined at over 1750°C.our sintered mullite is characterized by high bulk density, stable quality, stability thermal shock resistance, low index of high ...