In automotive manufacturing, various plastic pellets play their unique roles. Polypropylene (PP), with excellent comprehensive properties, is widely used in components like car dashboards, seats, and bumpers, ensuring strength while considering cost. Polyvinyl chloride (PVC) is mostly used for interior parts such as door trim panels and armrests, providing good flexibility and touch. Polycarbonate (PC) stands out for its high transparency and strength, being the top choice for car lamp shades and alternatives to window glass. Acrylonitrile Butadiene Styrene copolymer (ABS) is often used for decorative accessories like center console trim strips and shift lever boots, creating an attractive appearance. Nylon (PA) plastic pellets are commonly employed to manufacture engine peripheral components, such as intake manifolds and radiator tanks, relying on their high-temperature resistance and wear resistance to ensure stable engine operation.