Water tank trucks are special tank-type special vehicles specially used for transportation or spraying water, also known as sprinkler trucks, water transport trucks, etc. Its core function is to load tap water, river water or well water through large-capacity water tanks, and to be equipped with front and rear sprinklers, high-pressure water cannons and other devices to achieve road surface flushing, vegetation watering, fire fighting and fire extinguishing. According to the chassis type, it can be divided into automotive, semi-trailer and tow type. The capacity specifications are distinguished by tonnage or cubic meters. The brands cover mainstream models such as Howo, and Shaanxi Automobile. It is mainly used in sanitation and cleaning, greening and maintenance, construction, mining water supply and fire emergency areas.