... surface area of molten metal flow through the filter into the castings moulds, thereby increasing productivity as ... : Cordierite and mullite, cordierite/mullite, mullite/zirconia, high aluminum, silicon carbide, etc.Application: Apply to iron, copper, ... casting filteringMelting mould casting filtering2. Specification of honeycomb pottery filter: Section size (length ×width) (mm)Hole typeAperture ...