Home / Standards / GB/T 20873-2007 GB/T 20873-2007 Active PM-cores made of magnetic oxides and associated parts-dimensions 磁性氧化物制成的PM磁心及其附件的尺寸 Standard Type GBT ICS 29.100.10 CCS L19 Status 现行 Issue Date 2007-02-09 Implementation 2007-09-01 Responsible Dept 工业和信息化部(电子) Drafting Unit N/A