1.tungsten carbide tips and buttons 2. Grade:YK05,YG8C,YK20,YG11C. ... Long lifetime and timely Properties and applications of cemented carbide grades rock drilling tools, geological prospecting drilling tolls and ... -14.3≥85.5≥2400With super toughness and corresponding wear resistance,it is suitable for mining inserts in mine ... drilling hard be used for other button tits Tungsten carbide mining tool part