Home / Standards / GB/T 9440-2010 GB/T 9440-2010 Active Malleable iron castings 可锻铸铁件 Standard Type GBT ICS 77.140.80 CCS J31 Status 现行 Issue Date 2010-12-23 Implementation 2011-06-01 Responsible Dept 国家标准委 Drafting Unit N/A