... as drawings or per PUNCH,MISUMI standards -for molding and die manufacturer -good performance carbide die --processed ... Guoyu Precision Machinery Co.,Ltd. Products standard and customized punches, guide pins, guide bushings, ejector ... , DAYTON Processed andTesting EquipmentsCenterless grinder, surface grinder,internal grinder, cylindrical grinder,inneraperture grinder, Quadratic elementCNC grinding ...