首页>
外国专利>
Process for the extraction and for the preparation of the alumina hydrate, potassium hydroxide, hydrated, and its derivatives, saline starting of the rocks containing these bodies in the form of silicates
Process for the extraction and for the preparation of the alumina hydrate, potassium hydroxide, hydrated, and its derivatives, saline starting of the rocks containing these bodies in the form of silicates