China Corundum Mullite Honeycomb Ceramic Monolith 100X100X150mm Square Cell 3mm Used in Steel, Forging and Smelting Furnace, Find details about China Heat Exchanger, Alumina Ceramic from Corundum Mullite Honeycomb Ceramic Monolith 100X100X150mm Square Cell 3mm Used in Steel, Forging and Smelting Furnace