Home / Standards / GB/T 38958-2020 GB/T 38958-2020 Active Wrought aluminum alloy precision forging—Technological specification 变形铝合金精密锻造 工艺规范 Standard Type GBT ICS 77.120.10 CCS J32 Status 现行 Issue Date 2020-07-21 Implementation 2021-02-01 Responsible Dept 国家标准委 Drafting Unit N/A