... , etc. 3.Size: 380x380mm, 408x408mm, 435x435mm, etc. Ceramic Foam Filter Plate Ceramic foam filters are made from ceramic corundum with excellent thermal quench, thermal conductivity and ... are widely used in the field of aluminum melting and casting Bore density: 20, 30, 40, 50 PPi, etc.Size: 380x380mm ...