Fused Cast AZS Block, also named as electro Zircon(ia) Corundum Brick, is an important and most widely used refractory material to ensure the normal operation of glass melting furnaces. The raw materials (Al2O3-ZrO2-SiO2) of fused cast AZS block series are manufactured by fusing completely into the molds, then it proceeds with further processes of cooling and burning. According to ZrO2 content difference, our company has series of ZS-AZS#33, ZS-AZS#36, ZS-AZS#41. And also based on different casting shapes, our materials can be classified with regular/normal (PT/RN/RC/N),oriented(TC/OC/QX), reduced cavity (ZWS/RR/EVF/ENC/EC), or without cavityâvoid free (WS/RT/VF/EPIC/FVP/DCL/FC).