Home / Standards / GB/T 30061-2013 GB/T 30061-2013 Active Ferromanganese-silicon nitride 氮化锰硅 Standard Type GBT ICS 77.100 CCS H42 Status 现行 Issue Date 2013-12-17 Implementation 2014-09-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A