C2174 Secret Room(1)

"Not necessarily!"

Faang Cheng immediately denied Yu Yien's words.

"Although this thing looks very complicated, its special feature is the broken part of the ancient shelf. Let us not know what we are talking about! But in fact, in ancient times, there were many famous machinists who could easily create such things, such as Mo Zi, Lu Ban, and so on. They were all very powerful machinists