... 50HRC Excellent in quality standard or customized blank punch Productsprecision mould parts, standard and customized punches, guide ... mould, die, air conditioning fin die, semi-conduct encapsulation mould, etcProcessing materialsCopper, high speed steel, carbon ... grinder, Inner-aperture grinder, CNC grinding machine, CNC milling machine, polishing machine, engine lathe, Quadratic element, Projector ( ...