Chango corporation was established in 2003, who is a system solution provider focusing on the development and application of ultrasonic technology. The system is widely used in welding, cutting, cleaning, nondestructive testing, etc. At the same time, the company is devoted to the R&D, manufacturing and sales of intelligent automation equipment, moreover it is one of the few solution providers in the industry who master both system integration and equipment integration. Products are widely used in automobile, consumer electronics, medical, textiles, home appliance, etc. The business scope has spread all over four continents. After years of technical accumulation, a series of equipment standards have been established, develops intelligent flexible production line, intelligent flexible workstation, special machine, tooling mold and core precision parts. Realizes the replace of import product. Meets the customer requirements of product update. In 2020, it was selected as the first batch of top 100 enterprises in Dongguan. Depending on solid local R&D, the company provides customers with advanced and complete flexible manufacturing solutions, and actively contributes to energy saving and environmental protection.