Fused zirconia corundum brick general models have three types，that is 33 #, 36 #, 41 #. According to the casting method, it is divided into four kinds, common casting, tilting casting, no shrinkage casting and quasi shrinkage casting. The casting method has nothing to do with the model, each type of fuse zirconia corundum brick can be used in any of four casting methods for casting. Henan Sialon science and technology Co,. Ltd fused zirconia corundum brick, also known as AZS fused zirconia corundum brick, AZS brick, cast AZS brick, etc., the English abbreviation of which is AZS, according to Al2O3-Zr02-Sio2 ternary phase diagram of the three chemical composition. According to the order of how many of its order, Al2O3 is taken A, Zr02 is taken Z, Sio2 is taken S. The national standard using this abbreviation, such as 33# casting zirconia corundum brick, abbreviated as AZS33 #, 36 casting zirconia corundum brick, abbreviated as AZS36 # , 41 casting zirconia corundum brick, abbreviated as AZS41 #. 33,36,41 is named according to the content of alumina (Al2O3), such as fused zirconia corundum brick AZS41 # refers to the alumina content of the fused zirconia corundum brick is 41%  , fused zirconia corundum brick AZS36 # refers to the alumina content of the fused zirconia corundum brick is  36%, fused zirconia corundum brick AZS33 # refers to the alumina content of the fused zirconia corundum brick is 33% .