Home / Standards / GB/T 30896-2014 GB/T 30896-2014 Active Ferrovanadium nitride 氮化钒铁 Standard Type GBT ICS 77.100 CCS H42 Status 现行 Issue Date 2014-09-30 Implementation 2015-05-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A