Home / Standards / GB/T 4676-2018 GB/T 4676-2018 Active Abrasive grains—Sampling and splitting 普通磨料 取样方法 Standard Type GBT ICS 25.100.70 CCS J43 Status 现行 Issue Date 2018-09-17 Implementation 2019-04-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A