The engine, as the core component of a car, has internal precision parts such as fuel injectors and pistons. Before processing and assembly, ultrasonic cleaning machines can efficiently remove oil stains, iron filings, and other impurities, ensuring stable engine performance. Automotive electronic components, like sensors and circuit boards, have extremely high cleanliness requirements. Ultrasonic cleaning machines can reach into the minutest details, avoiding electronic failures caused by impurities. Additionally, car wheels and other components, after production, can have residual processing agents removed through ultrasonic cleaning, enhancing the product's appearance quality and overall quality, promoting the high-quality development of automotive manufacturing.