Home / Standards / GB/T 3620.2-2007 GB/T 3620.2-2007 Abolished Titanium and titanium alloys-permissible variations of chemical composition for wrought product analysis 钛及钛合金加工产品化学成分允许偏差 Standard Type GBT ICS 77.120.50 CCS H64 Status 废止 Issue Date 2007-04-30 Implementation 2007-11-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A