Home / Standards / GB/T 37682-2019 GB/T 37682-2019 Active Large exposed gear steel castings—Technical specification 大型开式齿轮铸钢件 技术条件 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