Home / Standards / GB/T 37681-2019 GB/T 37681-2019 Active Heavy steel castings—General technical specification 大型铸钢件 通用技术规范 Standard Type GBT ICS 77.140.80 CCS J31 Status 现行 Issue Date 2019-06-04 Implementation 2019-06-04 Responsible Dept 中国机械工业联合会 Drafting Unit N/A