C267 Curved Plough

Li Shimin frowned and said, "Twice as fast? Still saving effort? "How is this possible …"

Li Xin said that this "plough" completely subverted Li Shimin's knowledge. Cheng Dingjin and Yuchi Hui had long since followed Li Shimin, listening to most of Li Xin's words.

Yuchi respectfully laughed. "In my early years, I was a blacksmith. I've taken care of quite a few different types of farming tools