Home / Standards / GB/T 17855-2017 GB/T 17855-2017 Active Calculation of load capacity of spline 花键承载能力计算方法 Standard Type GBT ICS 21.120.30 CCS J18 Status 现行 Issue Date 2017-09-07 Implementation 2018-04-01 Responsible Dept 国家标准委 Drafting Unit N/A