Home / Standards / GB/T 42914-2023 GB/T 42914-2023 Active Test method for fracture toughness of aluminium alloy products 铝合金产品断裂韧度试验方法 Standard Type GBT ICS 77.040.10 CCS H22 Status 现行 Issue Date 2023-08-06 Implementation 2024-03-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A