Home / Standards / GB/T 21182-2007 GB/T 21182-2007 Abolished Scraps of cemented carbide 硬质合金废料 Standard Type GBT ICS 77.120 CCS H69 Status 废止 Issue Date 2007-11-23 Implementation 2008-06-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A