Home / Standards / JB/T 4138-1999 JB/T 4138-1999 Abolished 精整车床 精度检验 Standard Type JB ICS N/A CCS N/A Status Abolished Issue Date 1999-10-08 Implementation 2000-03-01 Centralized Committee 国家机械工业局 Issuing Authority 国家机械工业局