Home / Standards / GB/T 26280-2010 GB/T 26280-2010 Active Integral drill steels for rock drilling 凿岩用硬质合金整体钎 Standard Type GBT ICS 77.140.60 CCS H44 Status 现行 Issue Date 2011-01-14 Implementation 2011-11-01 Responsible Dept 中国钢铁工业协会 Drafting Unit 中国钢铁工业协会