首页>
外国专利>
Method of manufacture of phenolic resins which are precipitated by a wet route in view of their application to the preparation of lacquers, enamels, paints, apprets, powder and agglomerates various insulating
Method of manufacture of phenolic resins which are precipitated by a wet route in view of their application to the preparation of lacquers, enamels, paints, apprets, powder and agglomerates various insulating