In the original way of Luban, the wings were first made into a soulless puppet, and then installed behind it to meet the requirements of accelerating with foreign objects. But now blue alum can be refined by thunder. Of course, it won't be. The best way to develop the wings is to make the wings into soulless puppets by making puppets first, then refine them with the method of thunder refining, plasticity, and finally portray the array to make the wings into a flying magic weapon.

it took two months for blue alum to refine this magic weapon. He didn't know the specific product level, but he could imagine that...