... tungsten carbide,standard size for copper, steel, Al, carbon wire drawing. 1.We supply with PCD, CD, ND and tungsten carbide ... surface and steady performance. 2.We have standard size for drawing different materials use, such as: copper, steel, Al, carbon, etc ... (plotter blade, wire stripping blade), water flow meter shaft, wire drawing die, cutting wheel(ceramic, glass cutting), and other precise tools ...