Home / Standards / JB/T 6861.4-1993 JB/T 6861.4-1993 Abolished SJ2004单回路调节器专用电路产品规范 Standard Type JB ICS N/A CCS N/A Status Abolished Issue Date 1993-07-09 Implementation 1994-01-01 Centralized Committee 机械工业部 Issuing Authority 机械工业部