Which outcome accompanied gunpowder refinement during Song Dynasty China?

💡 Explanation

More potent gunpowder initiated advances in cast iron cannon technology because high explosives demanded stronger metallurgy using advanced smelting techniques to reliably contain explosions; therefore, iron artillery scaled upward, rather than pre-dating arrow ballistics.

• Within ancient Chinese metallurgy, which mechanical risk arose from rapid temperature shifts during cast iron production using coke firing?
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