Solid tires are generally used under high loads, requiring the rubber material to have sufficient pressure resistance and wear resistance, high enough tensile stress, high hardness, low permanent deformation and good wear resistance. A solid tire is an industrial tire suitable for running a vehicle under low-speed, high-load and severe use conditions. Its safety, durability, economy, etc. are significantly superior to pneumatic tires, and are widely used in various industrial vehicles, military vehicles, and construction machinery. , port airports, trailers, and other areas.