Established in 1985, Shi Jiazhuang Yipeng Auto Parts & Accessories Factory is specialized in manufacturing various diesel inlet and exhaust valves and piston rings for imported and home-made autoes. The people-oriented enterprise attaches importance to science and technology, taking the lead in passing ISO9001: 2000 International Quality Management System and possess advanced production technologies and facilities such as thermometal friction welding, plasma arc alloy powder overlaying, German salt bath nitrogenation technology, computer controlling high frequency quenching, boom end spray-welding and form grinding alike. Advanced production technologies adoption and rich researching and developing capabilities are our principal predominance.In line with the operational idea of Take the people-oriented initiatives, insist on scientific and technical innovation, dedicate to continuous improvement and pursue loyalty for buyers, we are willing to develop with guests and friends from all circles hand in hand so as to achieve our resplendence. According to buyer's drawings and samples, we can process and produce various inlet and exhaust valves and piston rings alike for imported and home-made auto internal-combustion engines.