abstract |
Cast and cast refractory product of the AZS type, characterized in that it presents a chemical analysis comprising, in percentages by weight: ZrO2: 15.5 to 22% SiO2: 10.5 to 15% Na2O + K2O + Li2O: 1.0 to 2 , 5% Impurities: <1% Al2O3: 100% complement |