Home / Standards / GB/T 29653-2013 GB/T 29653-2013 Active Manganese ores - Determination of size distribution by sieving 锰矿石 粒度分布的测定 筛分法 Standard Type GBT ICS 73.060.20 CCS D32 Status 现行 Issue Date 2013-09-06 Implementation 2014-05-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A