Cold and hot and ultra-high pressure water cleaners for automobiles, agricultural machinery, engineering vehicles, industrial equipment, ships, aircraft. For industrial, community, agricultural field cleaning. For container washing: industrial, food storage tanks, storage tanks, municipal waste collection bins. For surface treatment, such as spray sand equipment for building walls, historical building cleaning equipment, ship fouling treatment equipment, building wall paint removal equipment. For fixed equipment, such as automatic cleaning machines (cars, equipment, food containers), car self-cleaning systems. For other equipment: environmental humidification (horticulture, flower greenhouse, industrial environment), dust removal equipment, fire protection equipment, pipelines, canals, sewers and other maintenance.