Home / Standards / GB/T 25747-2022 GB/T 25747-2022 Active Magnesium alloy die castings 镁合金压铸件 Standard Type GBT ICS 77.120.20 CCS J31 Status 现行 Issue Date 2022-03-09 Implementation 2022-10-01 Responsible Dept 国家标准委 Drafting Unit N/A