The seven-washer car wash is applied flexibly to ultrasound and has a good level of cleaning of the oxidation layer and stains on the car supplies. The ultrasound has a strong excretion function which is rapidly defouled: the ultrasound is transjected to liquids by more than 20,000 compressions per second and high-frequency transformations that reduce pressure interaction, strips all kinds of dirt off the seat mats with a strong shock effect, and the whole cleaning process takes a short time; ultrasonics also have strong penetration results, making the cleaning more thorough and, because of the perforation inherent in the ultrasonics, the various surface complex and distinctive shapes of car articles, as well as their deep holes, cracks and hidden places, can also be cleaned clean and the angles are not dead. In addition to this, ultrasound washing techniques, which are protected from damage, by means of ultrasound vacating, so that the stains can be "shocked down" from the object i...