Home / Standards / GB/T 28868-2012 GB/T 28868-2012 Active Dimensions of uncoated ring cores of magnetic oxides 未经涂覆的磁性氧化物环形磁心的尺寸 Standard Type GBT ICS 29.100.10 CCS L19 Status 现行 Issue Date 2012-11-05 Implementation 2013-02-15 Responsible Dept 工业和信息化部(电子) Drafting Unit N/A