The model of wooden ox and flowing horse developed by Zhuge Liang, a strategist in the Three Kingdoms period, was copied successfully!

I've spent more than ten years working as a mule. I’m not doing anything right now. What's the use of wooden cows flowing horses? Your friend's house is short of straw for transporting seedlings. Just buy a truck. Why not build a wooden trailer with cows or horses? In addition, there are samples and production methods of Mu Niu Liu Ma. Do you think you have created an invention?

The world outside is vast. ...