2004. 11. 16 Binding system for inorganic coating  2004. 12. 01 Aluminum-Manganese be oxidizer using for Deoxidation process of Hot-metal  2004. 12. 01 Acceleration material of slag making and fabrication method thereof  2004. 04. 12 Inorganic coating for preventing the adhesion of molten steel  2003. 11. 12 Silicon-Carbon briquette for increasing temperature of iron melt  2003. 04. 23 Inorganic refractory paint having good heat Emissivity  2002. 11. 29 A manufacturing method of Molybdenum oxide briquette