
PREN 12309-2 - GAS-FIRED ABSORPTION AND ADSORPTION AIR-CONDITIONING AND/OR HEAT PUMP APPLIANCES WITH A NET HEAT INPUT NOT EXCEEDING 70 KW - PART 2: RATIONAL USE OF ENERGY
出版:British Standards Institution

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PREN 12309-2 - GAS-FIRED ABSORPTION AND ADSORPTION AIR-CONDITIONING AND/OR HEAT PUMP APPLIANCES WITH A NET HEAT INPUT NOT EXCEEDING 70 KW - PART 2: RATIONAL USE OF ENERGY
出版:British Standards Institution
专家解读视频