Fused cast refractories be used in glass furnace or frit furnace. Using zircon sand as raw material, after melting, cast in the mould, then curdle, keep warm, demould, grind, assembly, packing and delivery. Classified by cast process, there are NC(Normal Casting), VF(Void Free),  different cast process are suitable for different part of glass furnace.  
  AZS33 fused cast refractories is suitable for superstructure of melting pool, sidewall and floor blocks of work pool, forehearth etc.