
BS EN 378-1 AMD1. Refrigerating systems and heat pumps. Safety and environmental requirements. Part 1. Basic requirements, definitions, classification and selection criteria
出版:British Standards Institution

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BS EN 378-1 AMD1. Refrigerating systems and heat pumps. Safety and environmental requirements. Part 1. Basic requirements, definitions, classification and selection criteria
出版:British Standards Institution
专家解读视频