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During the Industrial Revolution in Britain, Henry Cort began refining iron from pig iron to wrought iron ... Cast iron was used in ancient China for warfare, ...
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The scale of production of iron and coal in China during the Tang and Northern Song dynasties ( ) was vastly greater than anywhere else in ...
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Who discovered coal and who discovered that it could be used as a heat source and when? Coal was one of man''s earliest sources of heat and light.
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