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

STANDARD published on 12.12.2006

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The information about the standard:

Designation standards: GB 20665-2006
Note: WITHDRAWN
Publication date standards: 12.12.2006
Country: Chinese technical standard
Category: Technical standards GB