Авто поршневых колец

Auto Piston Ring: We have fully absorbed the domestic and overseas advanced technology and experience in piston rings business management.At present,we possess of the first class manufacting environment and production equipment in china. The advanced surface treatment technology of chromium,nitriding ,PVD and high-grade raw material like ductile cast iron and heat-resistant stainless steel are widely using on production. For our piston ring: 1.material:nodular iron,cast iron,steel,alloy,and etc(as customer's request) 2.surface treatment:polishing,plating,oxidation,phosphating,and etc(as customer's request) 3.product advantage:reduce fuel consumption if you need any more information,pls do not hesitate to connect with me. OEM&customer drawing&sample accepted