Home / Standards / GB/T 13821-2023 GB/T 13821-2023 Active Zinc alloy die castings 锌合金压铸件 Standard Type GBT ICS 77.120.60 CCS J31 Status 现行 Issue Date 2023-05-23 Implementation 2023-05-23 Responsible Dept 国家标准委 Drafting Unit N/A