I am very bad at English so I will write in English and in my native language.
You may have seen silver, bronze and gold ingots, so they are used only for sale, I suggest adding an NPC blacksmith in the camp who, for a fee and for these ingots, could craft weapons and armor, cast enchantments and (suck enchantments from weapons ( Optional) ), or create special scrolls with enchantments for weapons scattered around the world.
These are just my thoughts about what could be done with ingots of silver, bronze and gold (infernal iron).
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