Castor Wheel Material: First of all, consider the size of the road, obstacles, residues on the use site, the environment and the weight of the wheel to determine the choice of suitable wheel material. When used on rough ground, wear-resistant and elastic rubber, polyurethane or super synthetic rubber wheels should be used; metal wheels or special high-temperature wheels should be selected when working at special high or low temperatures, or when the temperature difference between working environments is large; where the accumulation of static electricity is required, special wheels should be used. Anti-static wheels can also be used as metal wheels; wheels with good corrosion resistance should be selected when there are a large number of corrosive media in the working environment, for example, rubber wheels can not resist acid, grease and chemicals, super polyurethane wheels, high strength polyurethane wheels, nylon wheels, steel wheels and high temperature wheels can be applied to non-corrosive wheels. The same special environment.