Home / Standards / GB/T 20962-2007 GB/T 20962-2007 Active Coated abrasives - Flap discs 涂附磨具 砂页盘 Standard Type GBT ICS 25.100.70 CCS J43 Status 现行 Issue Date 2007-06-25 Implementation 2007-11-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A