1. Ultrasonic knives are usually made of metal materials such as titanium alloy and stainless steel, which are characterized by high strength, high hardness, high temperature resistance, and corrosion resistance. They can withstand the high-frequency thermal energy and mechanical impact force generated by ultrasonic vibration and maintain a stable working state.

2. The cutting advantages of ultrasonic food cutting knives largely depend on the cutting principle, blade characteristics, and materials used, which can also play a certain role in cutting. They can achieve significant effectiveness in specific food cutting and are suitable for any food.