Home / Standards / GB/T 38805-2020 GB/T 38805-2020 Active Technical requirements of heat treatment for heavy duty gears 重载齿轮热处理技术要求 Standard Type GBT ICS 25.200 CCS J36 Status 现行 Issue Date 2020-06-02 Implementation 2021-01-01 Responsible Dept 国家标准委 Drafting Unit N/A