... hole cones: large, medium, small Ceramic Filter Plate for aluminium casting machine Ceramic foam filters are made from ceramic corundum with excellent thermal quench ... 408x408mm, 435x435mm, etc.Type of tap hole cones: large, medium, small. Tap hole cones are temperature-resistant silicate fiber products used ... Ltd7,Wujiang Longma Aluminum Co., Ltd8,Interthai Manufacturing Co., Ltd Ceramic Filter Plate