Cao Xiu looked at the U-shaped iron piece in front of him, his face full of incredulity. The melee combat of the Qin State climbing the science and technology tree was also very fast, and the horseshoe was pulled out in just one day. Although the workmanship is a little rougher, it is also quite difficult.

It can only be said that he underestimated the wisdom of the ancients.

He had also read a lot of time-traveling online articles before, and he saw that the protagonist had traveled through the past to be invincible. But the disadvantage is that you can do everything yourself, and you have to do everything by yourself. After you get it out,

"Da Qin: Picking Up the Eight-Year-Old First Emperor at the Beginning" Chapter 313 Yes, you guys did a really beautiful job! I am hitting it in my hand, please wait a moment,

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