Main product lineup

Dae Han Lee Yon Inc. is manufacturing piston rings and cylinder liners used for internal combustion engines.

Our piston rings used for automobiles, two wheelers, and industrial purpose internal combustion engines and etc. require application of highly advanced manufacturing technologies and materials and special surface coating. As a result, they offer excellent performance and superb durability(lifespans). Especially, our piston rings for automobile engines adopt latest technologies to reduce frictional losses, thus improving the fuel efficiency and the outputs.

Ion plating, which means special surface coating is applied for the first time in Korea, thus proving its excellence and contributing to the development of automobile industry.