GB/T 39488-2020燃气燃烧器和燃烧器具用安全和控制装置特殊要求电子式燃气与空气比例控制系统标准
英文:Safety and control devices for gas burners and gas-burning appliances—Particular requirements—Electronic type gas and...
英文:Safety and control devices for gas burners and gas-burning appliances—Particular requirements—Electronic type gas and...