In october 2007, as a result of the national policy's promotion of energy conservation, traditional car washes could not be successfully carried out, and after several months of expansion, the market received very strong feedback, with regional agents in place in some areas, which would be the best of today's wise choices. Characteristics: first, there is a growing acceptance of door-to-door operations by a large group of young people, second, the difficulty of choosing wisdom, and the lack of any special requirements for operators, and third, the characteristics of the project, namely, the conservation of the environment and the policies of the environmental sector. Beijing international has done its best to create a comprehensive service that "must wash" car washes. The service centres under the flag, which "must wash" door-to-door car wash, use imported energy-efficient cleaning equipment and a series of specialized washing agents, with high-quality products, specialized technologies and humanized service concepts, and once introduced, gain wide praise from the owner. At the same time, in order to make it easier for a large number of drivers to purchase the most convenient products, "must wash" has made every effort to introduce a series of nine categories of nearly 100 products, mainly one-to-one services. The conservation of the environment, the national chain, the "must wash" created the "go-to-door wash" for the consolidation of the national customer resources of the car family. The introduction of imported energy-efficient mobile car wash equipment and a series of specialized washing agents, without the need to rent a front or a site and with only a minimal amount of water to wash a vehicle directly, has been an initial success in addressing the limitations of access and water use. The services of a car wash at night take over the residential market in the sub-districts, and the services of a car wash at daytime take over such markets as the writing buildings, hotels, parking lots, government units, industrial parks and universities