... 1.From Zhuzhou city(the tungsten carbide base) 2.Different grades are available 3.100% virgin raw material Carbide anvils is the synthesization cavities ... high temperture.Our main products include:cemented carbide drills,cutting cutters,mining tools,drawing dies,carbide strip,rods and so on.skillful workers ... ,K05,K10,K15,K20,K30,P20,P40 etc. 2-facet tungsten carbide anvil tools for diamond application