We are group factory, manufacture and export auto parts and motorcycle parts such as intake/exhaust valve, valve guide, piston, piston ring, cylinder liner,crankshaft, ball bearing,fuel filter, etc.We cooperate with firms from America and Japny, the chemical elements and metal characteristicsof our products are 100% quality guaranted.We located in Ainqing ,the piston ring of TP brand is NO.1 in China,we can export you TP rings.