Home / Standards / GB/T 39194-2020 GB/T 39194-2020 Active Technical requirement of heat treatment for vacuum low pressure carburizing high pressure gas quenching 真空低压渗碳高压气淬热处理技术要求 Standard Type GBT ICS 25.200 CCS J36 Status 现行 Issue Date 2020-10-11 Implementation 2021-02-01 Responsible Dept 国家标准委 Drafting Unit N/A