Home / Standards / JB/T 6666.2-1993 JB/T 6666.2-1993 Abolished 导叶式混流泵 技术条件 Standard Type JB ICS N/A CCS N/A Status Abolished Issue Date 1993-06-04 Implementation 1994-01-01 Centralized Committee 机械工业部 Issuing Authority 机械工业部