Home / Standards / NB/T 20007.29-2014 NB/T 20007.29-2014 Active 压水堆核电厂用不锈钢 第29部分:泵用奥氏体-铁素体双相不锈钢A、B、C 类非承压铸件 Standard Type NB ICS N/A CCS N/A Status Active Issue Date 2014-10-15 Implementation 2015-03-01 Centralized Committee N/A Issuing Authority N/A