... OEM is welcomed 5.ISO9001:2008 Name: Copper cold wire drawing dies drawing die features for specicial wires and tubes1.diameter range: ... control≤0.10mmcasting:according to user requirements ,it can choose brass,45#high quanlity carbon steel, stainless steel,etc.Some ... carbide diesTungsten carbide is a class of materials widely used in drawing dies because of their superior strength, toughness, and wear ...