C209 Fly back to the sect

The morning of the second day, before leaving, Long Bufan called for An Sen and Bo Xiong to take care of everything in the territory. As for Wu Yi and the others in the smelting room, he threw over ten or so blueprints for them to study on, namely the bicycle, the hot air ball and the car.

Of course, the special forces Long Bufan didn't know the theory behind this kind of complicated