GB/T 40438-2021热泵型新风环境控制一体机标准
英文:Integrated heat pump environment control unit with outdoor air GB/T 40438-2021介绍: 国家标准《热泵型新风环境控制一体机》由TC143(全国暖通空调及净化设...
英文:Integrated heat pump environment control unit with outdoor air GB/T 40438-2021介绍: 国家标准《热泵型新风环境控制一体机》由TC143(全国暖通空调及净化设...