Home / Standards / GB/T 5156 GB/T 5156 Active Magnesium and magnesium alloy hot-extruded profiles 镁及镁合金热挤压型材 Standard Type GBT ICS 77.120.20 CCS H61 Status 现行 Issue Date 2023-11-02 Implementation 2022-10-01 Responsible Dept N/A Drafting Unit N/A