C929 The Seven Annihilator Can't be Hung up On?

Elder Tu was originally in the Command Tower. At this moment, he had a lot on his mind. Even when he saw Qin Guan, he only used his eyes to signal to Qin Guan, but his brows were still tightly knitted.

In the 6611 Command Tower. Elder Soong was in charge of the J-10 project. Elder Tu was in charge of the J-7 and the J-7's transformation