GB/T 38289-2019城市燃气设施运行安全信息分类与基本要求标准
英文:Classification and basic requirement for operational safety information of town gas facility GB/T 38289-2019介绍: 国家标准《...
英文:Classification and basic requirement for operational safety information of town gas facility GB/T 38289-2019介绍: 国家标准《...