Home / Standards / GB/T 24237-2009 GB/T 24237-2009 Abolished Iron ore pellets for shaft direct-reduction feedstocks - Determination of the clustering index 直接还原炉料用铁矿球团 成团性的测定方法 Standard Type GBT ICS 73.060.10 CCS D31 Status 废止 Issue Date 2009-07-15 Implementation 2010-04-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A