Home / Standards / GB/T 2524-2019 GB/T 2524-2019 Active Titanium sponge 海绵钛 Standard Type GBT ICS 77.150.50 CCS H64 Status 现行 Issue Date 2019-06-04 Implementation 2020-05-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A