... tungsten carbide,standard size for copper, steel, Al, carbon wire drawing. 1.We supply with PCD, CD, ND and tungsten ... be round, square, spiral or some customised irregular shape.4,OEM welcomed.Xiamen Poko Precision Die of Wolfram Steel Tool ... tungsten carbide industrial tools. Blade(plotter blade, wire stripping blade), water flow meter shaft, wire drawing die, cutting wheel(ceramic, glass cutting), ...