Home / Standards / GB/T 23539-2009 GB/T 23539-2009 Active Coated abrasives - Flap wheels with shaft 涂附磨具 带轴页轮 Standard Type GBT ICS 25.100.70 CCS J43 Status 现行 Issue Date 2009-04-23 Implementation 2009-12-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A