1, <ultrasonic cleaning> Sunlite the introduction of the world's leading ultrasonic cleaning equipment and technology to completely remove the radiator in the production process of residual impurities and oil, so that the wall clean and smooth, conducive to strengthening the internal corrosion Paint adhesion, thus extending the life of the radiator; 2, <automatic vacuum filling anti-corrosion process> Senat radiator using industry-leading automatic vacuum filling anti-corrosion technology, anti-corrosion coating can vacuum negative Pressure of the environment evenly sprayed on the wall, the coating adhesion is not easy to fall off, the coating can play a lasting role, to avoid the corrosion of the radiator.