The solution effectively shows environmental defense and vitality preserving. EPG has been successfully certified by ISO9002 Quality Management Program, ISO9001 Quality Administration Method, API certificate, ISO/TS16949:2002 and ISO10012 measurement management technique. The high exact CNC equipment, such as Slow-feeding wire-minimize device, jig grinding machine and electric powered discharge device, guarantees the best good quality precision of mould processing, with the higher successful and environmental safety acid rolling line being the biggest raw substance changing tools in the subject in china The wildly use of automated milling machine, high-pace automated feeding punch, high speed computerized rolling and assembling device guarantees the substantial quality and performance of parts and chain creating.