Home / Standards / GB/T 18376.2-2014 GB/T 18376.2-2014 Abolished Grades of cemented carbide―Part 2: Grades of cemented carbide for geological and mining tools 硬质合金牌号 第2部分：地质、矿山工具用硬质合金牌号 Standard Type GBT ICS 77.160 CCS H70 Status 废止 Issue Date 2014-03-27 Implementation 2014-12-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A