Home / Standards / GB/T 46786-2025 GB/T 46786-2025 Upcoming Metallographic test for zinc alloy die castings 锌合金压铸件金相检验 Standard Type GBT ICS 77.120.60 CCS J31 Status 即将实施 Issue Date 2025-12-02 Implementation 2026-07-01 Responsible Dept 国家标准委 Drafting Unit N/A