Home / Standards / NB/T 20388-2016 NB/T 20388-2016 Active 压水堆核电厂核岛孔洞封堵施工及验收规范 Standard Type NB ICS N/A CCS N/A Status Active Issue Date 2016-02-05 Implementation 2016-07-01 Centralized Committee 国家能源局 Issuing Authority 国家能源局