
En 378 Refrigerating Systems And Heat Pumps - Safety And Environmental Requirements - Part 3: Classification Of Refrigerating Systems, Occupancies And Refrigerants
出版:British Standards Institution

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En 378 Refrigerating Systems And Heat Pumps - Safety And Environmental Requirements - Part 3: Classification Of Refrigerating Systems, Occupancies And Refrigerants
出版:British Standards Institution
专家解读视频