... products, reduce the air vent of castings, raise the casting quality, and reduce the cost. Material: Cordierite and mullite, ... cordierite/mullite, mullite/zirconia, high aluminum, silicon carbide, etc. It is widely used in ... Dia.80mm, Dia.100mm.1. Technical data of honeycomb ceramic plate: Item materialAl2O3(%)Hole typeMilli hole(μm)Coefficient of Thermal Expansion ...