On October 31, a group of four people from the company led a team to study at the Zhangjiagang Laboratory of Nanjing University of Science and Technology. Prof. Feng Hutian, the leader of the National Specialized Expert Team for Rolling Functional Components and the Doctoral Supervisor, introduced the method of testing the ball screw and introduced various experimental instruments.

In addition, he also presented a professional book edited by Professor Feng to the delegation.