"Let me ask you, if you were asked to do it now, how long would it take to make a hundred large bamboos?"

Yang Sheng said: "If the black fire is sufficient, and the other raw materials are also sufficient, you can make a hundred big bamboos a day, and if you let all the people in the fireworks and firecrackers workshop work hard together, it should be possible to make a thousand a day." ”

In the non-mechanical era, this ......

"I Praise My Wife as an Emperor" Chapter 60 Beheaded Again? I am hitting it in my hand, please wait a moment,

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