On the afternoon of October 25, 2022, Ningbo Yiji Valve Manufacturing Co., Ltd. invited the leaders of Ningbo Human Resources and Social Security Bureau, Ningbo Fenghua District Human Resources and Social Security Bureau and related professional experts to conduct an opening review of Tianjin University Dr. Liu's postdoctoral research project "Key Technology Research and development of valve flexible Manufacturing based on digital twins".

The expert group listened to Dr. Liu's proposal report, after questions and discussions to form review opinions, the topic is based on the enterprise valve manufacturing process, for the key manufacturing process control, the use of digital twin, visualization and other technologies, improve the intelligent level of manufacturing process, improve product quality, the expert group unanimously agreed to pass the proposal.