Home / Standards / JB/T 6179-1992 JB/T 6179-1992 Abolished 光学零件镀膜分类、符号及标注 Standard Type JB ICS N/A CCS N/A Status Abolished Issue Date 1992-05-15 Implementation 1993-01-01 Centralized Committee 机械工业部 Issuing Authority 机械工业部