Home / Standards / DL/T 1699-2017 DL/T 1699-2017 Active 燃气-蒸汽联合循环机组余热锅炉安装验收规范 Standard Type DL ICS N/A CCS N/A Status Active Issue Date 2017-03-28 Implementation 2017-08-01 Centralized Committee 国家能源局 Issuing Authority 国家能源局