Home / Standards / GB/T 4948-2025 GB/T 4948-2025 Active Sacrificial anode of aluminum alloy 铝合金牺牲阳极 Standard Type GBT ICS 47.020.05 CCS A29 Status 现行 Issue Date 2025-04-25 Implementation 2025-08-01 Responsible Dept 国家标准委 Drafting Unit N/A