Tundish nozzles are basically used for controlling the flow of steel from the Tundish to the Continuous Casting equipment. Different kind of tundish nozzles include, Alumina, Alumina Carbon, Zirconia Alumina Nozzles, which are manufactured for single to multiple casting application. The tundish is a refractory container, and the molten steel poured from the ladle is distributed to each mold through the tundish metering nozzle.The quality and life of the tundish nozzle directly affect the purity of steel before entering into mold.http://www.ayzirconia.com/tundish-refractory/tundish-upper-nozzle/