... , hardness-45-50HRC Excellent in quality standard or customized blank punch Productsprecision mould parts, standard and customized punches, guide pins, guide ... etc.Processing StandardsDEM, HASCO, MISUMI, PUNCH, SANKYO, DAYTONProcessed andTesting EquipmentsCenter-less grinder, surface grinder, internal grinder, cylindrical grinder, Inner-aperture grinder, CNC grinding machine, CNC milling ...