Home / Standards / GB/T 10322.7-2016 GB/T 10322.7-2016 Active Iron ores and direct reduced iron—Determination of size distribution by sieving 铁矿石和直接还原铁 粒度分布的筛分测定 Standard Type GBT ICS 73.060.10 CCS D31 Status 现行 Issue Date 2016-12-30 Implementation 2017-09-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A