Home / Standards / GB/T 1420-2015 GB/T 1420-2015 Active Sponge palladium 海绵钯 Standard Type GBT ICS 77.150.99 CCS H68 Status 现行 Issue Date 2015-09-11 Implementation 2016-04-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A