... tungsten carbide,standard size for copper, steel, Al, carbon wire drawing. 1.We supply with PCD, CD, ND and tungsten carbide drawing die with polish surface and ... size for drawing different materials use, such as: copper, steel, Al, carbon, etc., according to your request.3,Wire shape can ... be round, square, spiral or some customised irregular shape.4,OEM welcomed.Xiamen Poko Precision Die of Wolfram ...