Home / Standards / JB/T 8647-1997 JB/T 8647-1997 Abolished 轻型台式钻床 精度检验 Standard Type JB ICS N/A CCS N/A Status Abolished Issue Date 1997-08-18 Implementation 1998-01-01 Centralized Committee 国家机械工业局 Issuing Authority 国家机械工业局