Home / Standards / GB/T 20168-2006 GB/T 20168-2006 Abolished Rapidly-quenched neodymium iron boron permanent magnetic powder 快淬钕铁硼永磁粉 Standard Type GBT ICS 77.120.99 CCS H65 Status 废止 Issue Date 2006-04-13 Implementation 2006-10-01 Responsible Dept 国家发展改革委 Drafting Unit 国家发展改革委