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Perfect Circle is a world class manufacturer of Piston Rings, Cylinder Liners, Heavy Duty Steel Camshafts, and Plastigage. We are committed to providing cost-effective quality engine component products and integrated systems to meet your company’s competitive and quality standards. |
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| We serve all markets that use internal combustion engines, including heavy duty on- and off-highway, passenger cars and trucks, marine, railroad, industrial, and single and double cylinder engines for small generator sets. Our Division Office is located in Muskegon, Michigan, with manufacturing facilities throughout the U.S. and the world, and an additional sales office in Detroit. |
