far away. Just take his ironworks, after pounding for so long, he only managed to hammer out wrought iron.If you want to smelt steel, the temperature is not up to standard. The main reason is that th...It is now the middle of the month.

The night was deep, a round moon hung high in the sky.

Inside the Yang family home, everyone sat together, watching Xiao Jiu calculate. yellowed, even blackened, and it lacks flexibility.Not to mention compared to the paper of previous generations, even Cai Lun's invention, Cai Hou paper, is far inferior!"Really" Du Jing still didn't...