Home / Standards / GB/T 43139-2023 GB/T 43139-2023 Active Density detecting method for vacuum solidified samples of casting aluminum alloys liquid 铸造铝合金液减压凝固试样密度检测 Standard Type GBT ICS 77.120.10 CCS J31 Status 现行 Issue Date 2023-09-07 Implementation 2024-04-01 Responsible Dept 国家标准委 Drafting Unit N/A