Home / Standards / GB/T 24733-2009 GB/T 24733-2009 Abolished Austempered ductile iron(ADI) castings 等温淬火球墨铸铁件 Standard Type GBT ICS 77.080.10 CCS J31 Status 废止 Issue Date 2009-11-30 Implementation 2010-09-01 Responsible Dept 国家标准委 Drafting Unit N/A