Home / Standards / GB/T 14229-2021 GB/T 14229-2021 Active Test method of surface contact strength for gear load capacity 齿轮接触疲劳强度试验方法 Standard Type GBT ICS 21.200 CCS J17 Status 现行 Issue Date 2021-05-21 Implementation 2021-12-01 Responsible Dept 国家标准委 Drafting Unit N/A