Ductile iron piston ring (nodualr iron piston ring)
1.Material: ductile iron 65-45-12 /80-55-06 (GGG40/GGG50)
2. Size range of OD at 0.75"-12.5" (20-320mm)
3.Joint: Interlock, Step cut, Butt cut, Hook, Angel butt cut etc.
4.Coatings: manganese phosphate, chrome, nikel ...
5.. Application:
hydraulic cylinder piston ring/air compressor piston ring/shock absorber piston ring/turbocharger seals and piston rings/large bore disel engine piston ring