Home / Standards / GB/T 23540-2009 GB/T 23540-2009 Abolished Coated abrasives - Flap wheels with incorporated flanges or separate flanges 涂附磨具 装有卡盘或未装卡盘的页轮 Standard Type GBT ICS 25.100.70 CCS J43 Status 废止 Issue Date 2009-04-23 Implementation 2009-12-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会