VDE 0705-559-2013 Electric room heating@ underfloor heating@ characteristics of performance - Definitions@ method of testing@ sizing and formula symbols; German version EN 50559:2013
Elektrische Raumheizung@ Fussbodenheizung@ Charakteristika der Gebrauchstauglichkeit - Definitionen@ Pruefverfahren@ Dimensionierung und Formelzeichen; Deutsche Fassung EN 50559:2013
Electric room heating@ underfloor heating@ characteristics of performance - Definitions@ method of testing@ sizing and formula symbols; German version EN 50559:2013 是非强制性国家标准,您可以免费下载前三页