Home / Standards / GB/T 30448-2013 GB/T 30448-2013 Active Nanoscale iron powder 纳米铁粉 Standard Type GBT ICS 77.160 CCS H71 Status 现行 Issue Date 2013-12-31 Implementation 2014-10-01 Responsible Dept 中国科学院 Drafting Unit N/A