Anex engineering private limited is an iso 9001:2000 certified manufacturer exporters of engine parts since 1960 for trucks, tractors, heavy duty, and cars & industrial applications. Anex engineering private limited offers piston rings available in ci, steel and ductile iron casting with oly and nickel and 40 mm to 300 bore sizes. There are different types of piston rings like; normal cut, shook cut, lap joint, step joint, 3 piece oil rings, hard chrome plated