After high-temperature smelting at 2250 ℃, using special processing techniques and formed by Bamac, it is of high quality, extremely hard, and tightly structured, making it a refractory material for the steel industry and other industries. According to the content of ZrO2, zirconia corundum generally includes low zirconia corundum (ZrO2 10%~15%), medium zirconia corundum (ZrO2 25%), and high zirconia corundum (ZrO2 40%).