a.material:tungsten carbide b.our carbide rods suitable for working with gray cast iron, steel ... bits, drawing dies, cold forging dies, carbide bars, carbide rods, carbide balls, carbide burrs, etc. Along with our company ... build business with more companies abroad .We make carbide rods, extruded or pressed, diameter from 1mm to 30mm, ... , grade in K10 to K40UF tungsten carbide rods with coolant holes