The "Other Body Parts" category refers to a broad group of components that form the skeletons, exteriors, and internal structures of a wide range of products, including automobiles, aircraft, home appliances, and industrial machinery. It is not limited to specific major components but encompasses a diverse array of parts that meet complex requirements such as functionality, design, weight reduction, strength, durability, corrosion resistance, and cost efficiency. Materials vary widely, including high-tensile steel sheets, aluminum alloys, magnesium alloys, various engineering plastics, and composite materials, and are selected according to the characteristics of the part. A wide variety of processing methods are applied, such as pressing, sheet metal fabrication, welding, injection molding, blow molding, casting, forging, machining, and surface treatment, which are crucial factors influencing the performance and appearance of the product.