Home / Standards / HG/T 3199-2009 HG/T 3199-2009 Abolished 石墨丝埋头 Standard Type HG ICS N/A CCS N/A Status Abolished Issue Date 2009-02-05 Implementation 2009-07-01 Centralized Committee 工业和信息化部 Issuing Authority 工业和信息化部