
Bs En 14511-4 - Air Conditioners, Liquid Chilling Packages And Heat Pumps With Electrically Driven Compressors For Space Heating And Cooling - Part 4: Requirements
出版:British Standards Institution

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Bs En 14511-4 - Air Conditioners, Liquid Chilling Packages And Heat Pumps With Electrically Driven Compressors For Space Heating And Cooling - Part 4: Requirements
出版:British Standards Institution
專家解讀視頻