GB 20665-2006

Minimum allowable values of energy efficiency and energy efficiency grades for domestic gas instantaneous water heater and gas fired heating-hot water combi-boilers

NORM herausgegeben am 12.12.2006

The information about the standard:

Designation standards: GB 20665-2006
Note: UNGÜLTIG
Publication date standards: 12.12.2006
Country: Chinese technical standard
Kategorie: Technische Normen GB