Home / Standards / NB/T 20192-2012 NB/T 20192-2012 Active 压水堆核电厂先导式安全阀通用要求 Standard Type NB ICS N/A CCS N/A Status Active Issue Date 2012-10-19 Implementation 2013-03-01 Centralized Committee 国家能源局 Issuing Authority 国家能源局