首页>
外国专利>
PROCESS FOR PRODUCING ALUMINIUM OXIDE-CONTAINING OXIDE CERAMIC, REFRACTORY MATERIAL AND AUXILIARIES FOR STEEL INDUSTRY BY USING DRY POWDER OR SLUDGE FRACTION ARISING DURING SMELTING
PROCESS FOR PRODUCING ALUMINIUM OXIDE-CONTAINING OXIDE CERAMIC, REFRACTORY MATERIAL AND AUXILIARIES FOR STEEL INDUSTRY BY USING DRY POWDER OR SLUDGE FRACTION ARISING DURING SMELTING