GB/T 19837-2019城镇给排水紫外线消毒设备标准
英文:Ultraviolet (UV) disinfection equipment for urban water and wastewater engineering GB/T 19837-2019介绍: 国家标准《城镇给排水紫外线消毒...
英文:Ultraviolet (UV) disinfection equipment for urban water and wastewater engineering GB/T 19837-2019介绍: 国家标准《城镇给排水紫外线消毒...