Home / Standards / GB/T 39280-2020 GB/T 39280-2020 Active Rods, wires and deposits for tungsten inert gas welding of non alloy and fine grain steels 钨极惰性气体保护电弧焊用非合金钢及细晶粒钢实心焊丝 Standard Type GBT ICS 25.160.20 CCS J33 Status 现行 Issue Date 2020-11-19 Implementation 2021-06-01 Responsible Dept 国家标准委 Drafting Unit N/A