On March 20, 2017, the chairman of our company, Wu Jiayu, was invited by Anhui Provincial Bureau of Traffic Construction Engineering Quality Supervision to give a lecture on "one question per quarter" in Anhui Province. The topic of the lecture was "Application of Nondestructive Testing Technology for Bridges Based on Shock Elastic Waves." And progress ", about 200 people attended the meeting. Participants included 19 quality supervision systems, such as Tongling Traffic Quality Supervision Bureau, Quzhou Traffic Quality Supervision Bureau, and Huangshan Traffic Construction Quality Supervision Station; Anhui Highway Engineering Testing Center, Anhui High-Speed Testing Center, and Zhongsheng Construction Project in Anhui Province There are 97 inspection units including test and inspection companies; 20 supervision units including Anhui Zhongxing Engineering Supervision Co., Ltd. and Hefei University of Technology Construction Supervision Co., Ltd., including 48 experts. During the lecture, the participants read the textbook "Civil Engineering Testing and Testing" edited by the chairman, and discussed actively and reflected well.