Product Description a, Co: 10%,Wc:90%b, TRS: >3600 N/mm2c, HRA: 91.8-92.4, HRC:45/55/60/65 degreesd, Grain size: 0.4-0.6μm 1, Super raw material Kennametal Carbide from USA, Sandvik Carbide from Sweden, CB Carbide from Taiwan, Zhuzhou Carbide from Hunan province. HRC45HRC55HRC60HRC65YG10XYG10.2 &WF25Germany K44 &..