Rare card
Piston ring
- Value
- 50 W
- Attack
- 267
- Defence
- 214
- Players
- 0
A piston ring is a metallic split ring that is attached to the outside of a piston in an internal combustion engine or steam engine. The main functions of piston rings in engines are: Sealing the combustion chamber so that there is minimal loss of gases to the crank case.
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