Home / Standards / GB/T 33506-2017 GB/T 33506-2017 Active Main drive curved tooth coupling for cold rolling mill units 冷轧机组主传动鼓形齿式联轴器 Standard Type GBT ICS 21.120.20 CCS J19 Status 现行 Issue Date 2017-02-28 Implementation 2017-09-01 Responsible Dept 国家标准委 Drafting Unit N/A