首页>
外国专利>
a method for preparation of cobalt containing phosphorus and ijzeroxydepoeder magnetic and magnetic registratiemedium with a coating that contains magnetic ijzeroxydepoeder,obtained by this method.
a method for preparation of cobalt containing phosphorus and ijzeroxydepoeder magnetic and magnetic registratiemedium with a coating that contains magnetic ijzeroxydepoeder,obtained by this method.