On March 25, 2021, we successfully passed the GB/T 29490-2013 Intellectual Property Management System certification and obtained the "Intellectual Property Management System Certification Certificate."

This successful certification fully affirms the company's long-term dedication to R&D in the field of "ultrasonic acoustics." It also marks that the company's creation, utilization, management, and protection of intellectual property in related fields have entered a new era of international standardization.

In the future, "Qingwen Technology" will continue to further improve its intellectual property management system, adhere to the path of innovative development, and bring better products and services to the nation, society, and the public! Stay tuned!