Home / Standards / GB/T 28804-2012 GB/T 28804-2012 Active Copper-free silver mirror on flat glass 无铜镀银玻璃镜 Standard Type GBT ICS 97.180 CCS Y89 Status 现行 Issue Date 2012-11-05 Implementation 2013-03-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A