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Chapter 192 gunpowder
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Chapter 194 brother, brother
PREVIEW
... and the discovery of more efficient chemical synthesis methods, for hundreds of years, gunpowder made by humans basically tasted very good - the ingredients of gunpowder were sulfur, charcoal and nitrate, the first two were basically everywhere, It is easy to mine and manufacture, but natural saltpeter is extremely rare and can only be extracted by artificial methods... The taste lies in the word "artificial".
China has a lot of saline-alkali land, there are relatively rich saltpeter mine ...
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