
BS EN 378-2 AMD1. Refrigerating systems and heat pumps. Safety and environmental requirements. Part 2. Design, construction, testing, marking and documentation
出版:British Standards Institution

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BS EN 378-2 AMD1. Refrigerating systems and heat pumps. Safety and environmental requirements. Part 2. Design, construction, testing, marking and documentation
出版:British Standards Institution
专家解读视频