Home / Standards / GB/T 38988-2020 GB/T 38988-2020 Active Damage-tolerant grade titanium alloy plate 损伤容限型钛合金板材 Standard Type GBT ICS 77.150.50 CCS H64 Status 现行 Issue Date 2020-07-21 Implementation 2021-06-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A