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About product and suppliers:
        Alibaba.com offers 70,019 piston ring products. About 35% of these are machinery engine parts, 22% are piston, and 22% are piston ring. 

A wide variety of piston ring options are available to you, such as diesel, natural gas, and gasoline. You can also choose from standard, nonstandard. As well as from ptfe, rubber, and pu. And whether piston ring is hydraulic, mechanical seal, or sealing strip. 

There are 69,370 piston ring suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and India, which supply 97%, 1%, and 1% of piston ring respectively. 

Piston ring products are most popular in Mid East, North America, and Africa. 

You can ensure product safety by selecting from certified suppliers, including 10,749 with ISO9001, 7,892 with Other, and 3,140 with ISO/TS16949 certification.