I. Characteristics of Carbon - Steel and ABS Materials Carbon - Steel Part High Strength and Stability Carbon steel is known for its high strength. In the construction of the commode chair, it forms a sturdy frame. This frame can bear a significant amount of weight, ensuring that the chair remains stable when used by different individuals, including those with heavier body weights. For example, when a user sits down or stands up suddenly, the carbon - steel frame can effectively resist deformation and maintain the overall integrity of the chair. Good Durability Carbon steel has relatively good durability. It can withstand normal wear and tear in daily use. Although it may not have the same level of corrosion resistance as some other materials like stainless steel, with proper surface treatment (such as painting or coating), it can still last for a long time. This makes it a cost - effective choice for the base structure of the commode chair. ABS Part Impact Resistance ABS (Acrylonitrile Butadiene Styrene) is a thermoplastic polymer with excellent impact resistance. In the commode chair, the ABS components, such as the seat or some parts of the armrests, can endure accidental impacts without easily breaking. This is important as the chair may be moved around or accidentally bumped in a household or care - giving environment. Easy to Mold and Shape ABS can be easily molded into various shapes through injection molding or other manufacturing techniques. This allows for the creation of ergonomic and aesthetically pleasing designs for the commode chair. For example, the seat can be molded to fit the human body shape, providing better comfort, and the armrests can be designed with smooth curves for a more user - friendly experience. Good Surface Finish ABS has a smooth surface finish, which is not only visually appealing but also easy to clean. Any dirt or stains on the surface can be wiped off easily, which is crucial for maintaining the hygiene of the commode chair.