The door inner belt weatherstrip was manufactured using the following supply chain: Hwaseung Chmical (Korea) supplied the coating solution to Industrias Tapla, S.L. which produced a flocking tape with a coating. Tapla subsequently supplied them to Sedong (Korea), the inner belt weatherstrip manufacturer. The TPV material was supplied by Hwaseung Material. The different parts of the inner belt weatherstrip for the door were extruded, cut, and finished according to the specifications of the drawing in Sedong. The manufactured parts were installed on the driver's door of the Hyundai Motor Company’s EV. Subsequently, the parts were evaluated, and vehicle-level tests were conducted