Regulations on gas-fired heating installations
[摘要] Regulations on gas-fired space and water heating installations (covering both liquefied and natural gas) took effect in O……
[发布日期] 2017-11-05 [发布机构]
[效力级别] Codes and standards [学科分类] 能源（综合）
[关键词] Building technologies;Building systems [时效性] Effective
