Home / Standards / GB/T 40802-2021 GB/T 40802-2021 Active Carbon and low alloy cast steels for general applications 通用铸造碳钢和低合金钢铸件 Standard Type GBT ICS 77.140.80 CCS J31 Status 现行 Issue Date 2021-10-11 Implementation 2022-05-01 Responsible Dept 国家标准委 Drafting Unit N/A