Home / Standards / GB/T 3612-2008 GB/T 3612-2008 Active Cemented carbide blanks for gauge blocks or measuring tools 量规、量具用硬质合金毛坯 Standard Type GBT ICS 77.160 CCS H72 Status 现行 Issue Date 2008-06-09 Implementation 2008-12-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A