C142 The Old Engineer Shared His Experience

At that moment, there was a knock on the door. Zhao Cheng opened the door and Wang Yixiao, Chang Hong, Qiao Heng, and a few other old designers walked in. Behind them were Cui Jin, Hong Junwei, Cao Gang, Liao Hongju, and other old engineers.

Although not all of them came, they were all top experts in this industry.

"Teachers. . . " Su Jianguo stood up and said respectfully