Hearing Cheng Xiujie's words, everyone present was silent.

Handed over the method of purifying refined iron to the imperial court?

If so, wouldn't the whole world know? Aren't they not superior in equipment?

But if you think about it carefully, the method of purifying refined iron will not be hidden for long, and sooner or later it will be known to the outside world......

Chapter 239 The share that Xu should have is being hit by hand, please wait a moment,

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