Home / Standards / GBT 3620.1-2016 GBT 3620.1-2016 Titanium and titanium alloys — Designation and chemical composition 钛及钛合金牌号和化学成分 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A