комплект поршневых колец

piston ring set Packing: According to customers' requirements we supply various specification engine part(piston rings) with many kinds of materials and packings. 1)material:nodular iron,cast iron,steel,alloy,and etc(we can do as customer's request) 2)surface treatment:polishing,plating,oxidation,phosphating,and etc(we can do as customer's request) 3)packing:as customer's request 4)prduct advantage:reduce fuel consumption our factory also produce water pump