C258 258】 Jingtian Scientific and Technological Achievements

"No... "Anti-gravitational system?"

"Worthy of being an engineer, you have good eyes!"

Zhu Hanhai's breathing gradually became rapid. His pair of sinister eyes sparkled, and he even took a hypotensive drug.

Ten minutes later, the video ended.

The content of the screen was exactly the theory of the anti-gravitational system. Jiang Chen had done it right last night for this very moment