In the R&D Department of the Ministry of Military Affairs, Li Jiye, Li Wei, Cheng Guogan, Director of the R&D Department, and several backbone workers were discussing something around a drawing.

"This, uh, dare to ask the Lord, what is the so-called drilling machine on this drawing for?"

Li Wei asked suspiciously, Guo Gan and a few hundred workers were also confused, and they didn't know what the drilling machine on the drawing was made of.

An iron couch-like instrument appeared on the paper, with some scattered parts on it, which looked very strange. Not only has Li Wei never seen it, but even Guo Gan and a few hundred workers around him have never seen anything like this.

This drawing was drawn by Li Jiye himself......

"New Tang Dynasty" Chapter 173 The drilling machine is being hit by hand, please wait a while,

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