Cars have become an unstoppable trend in developed cities. The number of users is constantly increasing, and the corresponding services are also continuously growing. According to the statistics of the China Association of Automobile Manufacturers, from January to August 2019, the output value of 21,098 auto parts enterprises reached over 1.5 trillion yuan. It is expected that the scale of the auto parts market will increase by more than 15% in 2012, and over 100 key domestic auto parts industrial parks will benefit simultaneously. It also brings new opportunities to the ultrasonic cleaning machine industry.