Home / Standards / JB/T 6683-1993 JB/T 6683-1993 Abolished 液压转向器配套用组合阀块 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