Home / Standards / GB/T 32930-2016 GB/T 32930-2016 Active Microcrystalline cemented carbide rod 微晶硬质合金棒材 Standard Type GBT ICS 77.160 CCS H72 Status 现行 Issue Date 2016-08-29 Implementation 2017-07-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A