Ring Khodro Pars Company (RKP) is the only designer and manufacturer of piston rings for various gasoline and diesel vehicles in Iran and the Middle East. RKP, aiming to achieve customer satisfaction and continuously improve all its activities while targeting zero defects, relies on its technical knowledge and production capabilities to independently manage the entire process of piston ring design, manufacturing, and quality control. This is done using specialized personnel, advanced machinery, and accredited laboratories affiliated with the Institute of Standards of Iran.