Home / Standards / GB/T 1775-2009 GB/T 1775-2009 Abolished Superfine gold powder 超细金粉 Standard Type GBT ICS 77.150.99 CCS H68 Status 废止 Issue Date 2009-01-05 Implementation 2009-11-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A