
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
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