First, the brand-backed 24-hour self-washing car is the brand of beijing quantas tech development ltd., which, since its creation in 2010, has focused on equipment development and production and marketing services in the automotive services market. After many years of development, the crown has become a well-known brand of the self-washing industry, providing quality car wash services to a wide range of consumers. Ii. Project characteristics 24-hour service: a 24-hour car wash with the crown provides car wash service 24 hours a day, 24 hours a day and night. Consumers can come to wash the car whenever they want to do so. Self-help: the project uses a self-washing model whereby consumers can wash their cars by means of a sweep code, which allows them to do so without waiting for manual services. Energy conservation for the environment: the use of advanced water-saving technologies for 24-hour car wash equipment in the crown is consistent with the development of environmental policy, ...