Kneeling on the ground in front of him, his palms kept twitching his face, and that sad look was not contrived.

Hearing his words, Qin Lan frowned, this method of smelting iron was the old way he had seen in the trees before.

He didn't care about this way, and he didn't tell Qian Feng and the others to keep it a secret.

In addition, the construction of blast furnaces and briquettes are all homeless and ......

"The First Prince of Great Wei" Chapter 357 The Method of Water Forging Steel is in the middle of the hand, please wait a while,

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