tungsten carbide drawing dies feature stable and trustable quality; made from 100% virgin raw material; all products go through in-process and final inspection; free online technical service available; tungsten carbide drawing dies grades GradeDensityHardnessT.R.S( Mpa) YG614.991.0 HRA2350 YG814.789.5 HRA2350 Customer samples and drawings are also welcomed.