Description: 1. The core is widely used in continuous casting tundish, blooms,billets, rectangular billet,slab steel casting to control the molten steel flow for the steel making use in the tundish nozzle or the ladle nozzle. 2. It has high corrosion resistance, high temperature resistance. The zirconia nozzle core can protect the nozzle and the molten steel well and make the steel more pure, thus get the good quality steel. 3.Our Zirconia Nozzle core has long service life because the pure of zirconia in the nozzle core is between 94%-95%.