grey iron piston ring (gray iron piston ring)

1.Material: grey iron class 30/40  (alloy grey iron)

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 ...


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