... , hardness-45-50HRC Excellent in quality standard or customized blank punch Productsprecision mould parts, standard and customized punches, guide pins, guide ... speed steel, carbon steel, alloy etc.Processing StandardsDEM, HASCO, MISUMI, PUNCH, SANKYO, DAYTONProcessed andTesting EquipmentsCenter-less grinder, surface grinder, internal grinder ...