Home / Standards / GB/T 2967-2017 GB/T 2967-2017 Active Cast tungsten carbide powder 铸造碳化钨粉 Standard Type GBT ICS 77.160 CCS H71 Status 现行 Issue Date 2017-10-14 Implementation 2018-05-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A