Home / Standards / GB/T 40801-2021 GB/T 40801-2021 Active Welding procedure qualification tests for titanium, zirconium and their alloys 钛、锆及其合金的焊接工艺评定试验 Standard Type GBT ICS 25.160.10 CCS J33 Status 现行 Issue Date 2021-10-11 Implementation 2021-10-11 Responsible Dept 国家标准委 Drafting Unit N/A