"Information Available for Public Disclosure" "Super hard Steel, Part 1" "With its combination of strength and flexibility, this material is capable of penetrating Titan flesh." "The 'half-bladed swords' made from it are well-known counter-Titan weapons."
"Information Available for Public Disclosure" "Superhard Steel, Part 2" "The factory town's blast furnaces are required for refining superhard steel. As such, only the factory town can produce it."