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In May 19th, Chen Guo, director of the judicial authentication center of Hunan University, visited and exchanged with me. Director Yan Jinglin introduced the history, development and Party building of Huabi Judicial Appraisal Institute, and accompanied Director Chen Guo to visit Huabi Institute and various professional laboratories. At the exchange meeting, Director Yan Jinglin pointed out that the exchange of visits between the two units has enhanced friendship, broadened ideas, created conditions for the establishment of a platform for cooperation, hoping to learn from each other's strengths and complement each other's weaknesses and promote common development.