Zhejiang Huadong Piston Ring Co., Ltd. was established in 1997, located in Ruian City which is the centre of Auto Spare Parts and Motorcycle Parts in China. We are a private company with advanced technology and have export license. Our company is specialized in producing Piston rings used in automobiles, motorcycles, gasoline engines, engineering machinery, gas engines and air compressors. We are a member of Chinese I.C. Engine Research Institute in Tianjin and are also a member of the National Industrial and Commercial Union of Auto Spare Parts and Motorcycle Parts. Our company takes science and technology as guideline, introduces international advanced production equipment, adopts the advanced CAD computer drawing technology and tests products by the first class testing instruments. We are in strict accordance with ISO/TS16949:2009 and ISO/9001:2000 Quality System standards and use computer management and 5S live management systems. Huadong is one of the leading companies in piston ring industry in China.We have developed piston rings for more than 700 vehicles, with more than 2000 different models. Our products are applied to more than 800 motorcycles. We have become one of the specialized companies with full ranges of models of automobile and motorcycle piston rings in Southeast Asian countries. We not only supply our Piston rings to Chinese main automobile and motorcycle companies and Chinese repair markets, but also export our products to more than 50 countries and regions, such as Southeast Asia, Africa, Europe and America.