Home / Standards / GB/T 39129-2020 GB/T 39129-2020 Active Numerical control system of machine tool—Fault diagnosis and correction specification 机床数控系统 故障诊断与维修规范 Standard Type GBT ICS 25.040.20 CCS J50 Status 现行 Issue Date 2020-10-11 Implementation 2021-05-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A