... Cordierite, Mullite, Alundum mullite Size customized We produce extruded ceramic filter with different appearance specifications, wall thickness, hole type and aperture ... of materials, sizes, shapes and apertures of the extruded ceramic filter.Material: Cordierite and mullite, cordierite/mullite, mullite/zirconia, ... can be customized as per client's requirements. Extruded ceramic filter for casting