Home / Standards / GB/T 20165-2012 GB/T 20165-2012 Abolished Rare earth polishing powder 稀土抛光粉 Standard Type GBT ICS 77.120.99 CCS H65 Status 废止 Issue Date 2012-11-05 Implementation 2013-05-01 Responsible Dept 国家标准委 Drafting Unit N/A