The Piston Ring Dynamic Machinety Co.,ltd of lilingcity,Hunanprovince (former hunan boyinpiston ring industril Co.,ltd) has left the mark of the wisdom and blueprint of the staff,since it was founded ten years ago, Out aim is to becom the manufacturer and selle of the most specialized and the cheapest piston ring in chian. Since its foundation,out company has adopted advanced method and Nami technology process.The products like thehigh-sealed,heat-stable,wear-resistant compound nitrogen ring and the shock-absorbing,anti-frictional,lubricating,anti-fusing semi cast ring are much better than thetraditionally-pr-ocessed semi steel piston ring according to all the testing standards,physical and mechanical functions. Out company pays grear eggorts im creation and scientific manafgement and training high quality sraff.Furthermore,we have studied and introduced the most advanced test equipment for processing.Till now,out company has become the one which combines exploitage, research, sales ...[More] service,together for the piston rings of specialized automobiles,motorcycles,generators,freezers,air-compressors and gasoline engine in south Chian.Out company offers over 200types of machine models from 50cc-250cc and thousands of specifications. Weoffer serv-ice for the main engine factories,mainte nance markets and international markets like Southeasr Asia,Middle East,Africe,Ewope,and America which target alloyed semi steel ring, ball-quartz alloyed steel ring,titanium ring Nami-porcelain ring and compound nitrogen ring. Yestertay,we united and strated out business before anyone else does; Today,we are shaping and strengthening before anyone elso staers; Tomorrow,we will practice and expand before anyone else shapes.