What are the composite materials used in automotive interiors?

　　I. Plastics

　　Plastics are one of the commonly used materials in car interiors. They are lightweight, wear-resistant, and easy to process, making them widely used in automotive manufacturing. Commonly used plastic materials include polypropylene, polyethylene, and polyurethane, suitable for making parts such as center consoles, door handles, and instrument panels.

　　II. Rubber

　　Rubber materials are mainly used in car interiors for making parts such as sealing strips and floor mats. Its advantages include good flexibility, resistance to aging and deterioration, and it can also provide shock absorption and anti-slip functions. Commonly used rubber materials include natural rubber, styrene-butadiene rubber, and chloroprene rubber.

　　III. Leather

　　Leather is a frequently used material in high-end car interiors. Leather has a good texture and high comfort, therefore it is widely used in high-end cars for seats, steering wheels, and door mats. However, leather is relatively expensive and requires strong stitching and manufacturing processes, thus demanding a high level of manufacturing technology.

　　IV. Fabrics

　　Fabrics are one of the commonly used materials in car interiors, mainly used for making seats and door panels. Fabric materials are soft, highly absorbent, and breathable. They can also be treated for different levels of water resistance and anti-static properties depending on the needs. Commonly used fabric materials include polyester fiber, nylon, and acrylic fiber.

　　V. Wood

　　Wood materials are mainly used in car interiors for decoration and making furniture parts. Wood has a natural, beautiful appearance and good texture. It can also be treated with paint, moisture-proofing, and anti-corrosion depending on the needs. Commonly used wood materials include oak, walnut, and maple.