Home / Standards / CB 1030-1983 CB 1030-1983 Abolished 蠕虫状石墨铸铁金相检验 Standard Type CB10 ICS N/A CCS N/A Status Abolished Issue Date 1983-12-07 Implementation 1984-10-01 Centralized Committee 中国船舶工业集团公司 Issuing Authority 中国船舶工业集团公司