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.

Our company is a private factory with advanced technology and have its own exporcycle license.Our factory is specialized in producing piston ring used in car /business perpost vehicle/orv/motorcycle/minicar/gasoline engine , all types of truck/passenger car/agricultural vehicle/construction machinery/gas engine and air compressor.

Our factory passed ISO9001 inernational quality system in 1999,passed ISO/TS16949 quality system in 2011, improving our international leading quality management level .

"Reputation First, Customers Foremost"is our business concepts.Seeking the best, striving for perfection is the aim of ours .Honest Cooperation, Endless Striving for Excellence, Mutual Benefiting and Win-win is our rules.We try our best to give the best service and the econom ic price to our clients.

Our company takes science and technology ad guide,introduced into our domestic and international advanced production equipments . Our technology and test products by first classtesting instruments.It is strictly according to the ISO/TS16949 quality system ,uses computer management and 6S live management,Huadong is one of leading factory in piston ring industry in china.

We have developed piston ring for more than 2000 models,more than 5000 size,become one of specialized factory with full ranges of models of automobile and motorcycle piston ring in southeast Asian countries.Our company have best equipment,there are High alloy cast iron /steel ring/Steel band compound oil ring/I steel small hole oil ring/big hole oil ring and other fine precessing production line.We can do chrome/tin/ composite coating/gas nitriding /salt bath nitriding/PVD/molly and other advanced technology.

We export our piston ring to Europe/America./South america/Middle east/Southeast/Afria and others ,there are total more than 50 countries .We have exported for more than 20 years,setting up sales internet and well-deserved reputation all over the world.we wish to do long time cooperation with you!