Home / Standards / GB/T 33520-2017 GB/T 33520-2017 Active Drive shaft T-section tooth 传动轴T型端面齿 Standard Type GBT ICS 21.120.20 CCS J19 Status 现行 Issue Date 2017-02-28 Implementation 2017-06-01 Responsible Dept 国家标准委 Drafting Unit N/A