material:DK460UF DK500UF a,superior quality b,high technology c, Pass ISO9001 and EWC e, Customization of metal cutting tool we are professional in wholesale, R&D, producing and processing of special, non-standard, abnormal shape and new products with high cost-performance ration . The company have more than several advanced machines and equipments, such as WEDM, Universal Cylindrical Grinder, ...