... the features of alkali and acid slag resistance, high strength, low thermal conductivity, superior thermal conductivity ... widely used in iron and steel, ceramic, chemical, cement, and ferrous and nonferrous industry, for example, ferrous ... metal smelting, cement rotary kiln, glass , etc. SpecificationsNameOxide bonded Corundum High aluminaSelf bonded Fireclay bondedItemSic, %, ...