Home / Standards / GB/T 11102-2008 GB/T 11102-2008 Active Cemented carbide products for geological exploration drilling tools 地质勘探工具用硬质合金制品 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