Which property primarily benefits early cannons cast using the now-lost 'Huihui Pao' technique?

💡 Explanation

Early Huihui Pao cannons benefited predominately by increased tensile strength due to quenching optimization during their specialized casting process. This avoided cracking during firing because the controlled cooling fostered martensite formation, therefore the cannons withstood greater explosive forces, rather than simply resisting oxidation, or deformation under pressure.

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