Home / Standards / GB/T 11357-2020 GB/T 11357-2020 Active Quality, roughness and balance of transmission pulleys 带轮的材质、表面粗糙度及平衡 Standard Type GBT ICS 21.220.10 CCS J18 Status 现行 Issue Date 2020-04-28 Implementation 2021-03-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A