The types of foldable wagon also include two wheeled vehicles and single wheeled vehicles, which are still used in some rural and mountainous areas of China. Wooden unicycle once played an important role in the movement of supporting the front in China's war of liberation.
Foldable wagons are made of stainless steel, steel, plastic, aluminum and so on. Stainless steel carts are widely used in food, medical, chemical and other industries. Steel carts are widely used in industries such as industry, storage and electronics. Plastic and aluminum carts are generally used in small warehouses, stores, shopping malls and other industries because of their light material and convenient carrying.