Hunan Zhengyuan Power Parts Co.,Ltd is founded in 1943 by the first piston ringmanufacturer Chinese Changsha circle power accessories limited liability company established restructuring. More than half a century, has always been committed to the key engine parts of piston ring R & D and production. The company has introduced Germany Gertz, piston ring design,manufacturing and testing technology and the British company AE piston ring hard chromium plating technology, and sent more than 50 people to the national learning and training. At the same time, the introduction of the piston has the world's advanced level in Germany, Britain, Japan, Switzerland and other countries of the ring dedicated production equipment and testing instruments, formed with the international advanced level of high-grade piston ring mass production capacity, product quality reach the international advanced level. The enterprise through continuous technical and scientific research and development, have a good understanding of the modern manufacturing technology of piston ring, using new materials and advanced surface treatment technology, to promote the piston ring to meet the engine continuously strengthen and exhaust for Euro Ⅲ...
