Electronica Tough Carb Limited manufactures Tungsten Carbide Nut Forming Dies for Heading Application. Electronica Tough Carb Limited supplies tungsten carbide products for the metal cutting, metal forming and mining applications. The Tungsten Carbide Nut Forming Dies for Heading Application are used in metal industry for the production of high quality nuts. The Tungsten Carbide Nut Forming Dies are highly wear resistance.