ASIMCO Shuanghuan Piston Ring (Yizheng) Co., Ltd.
A Piston ring is a split ring that fits into a groove on the outer diameter of a piston in a reciprocating engine such as an internal combustion engine or steam engine.
The main functions of piston rings in reciprocating engines are:
Currently, the piston rings function in sets, usually, a top compression ring, a second groove compression (or oil scraper) ring, and an oil control ring.
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