Answer: Blacksmithing and metallurgy
Explanation: A blacksmith is a person whose job is to work iron. Traditionally, the manufactures of blacksmiths are wrought iron elements, bars, for furniture, sculptures, tools, decorative and religious items, bells, kitchen utensils and weapons. Before the industrial revolution, the "blacksmith of the village" was a basic neighbor of any town. Mass production techniques have reduced the demand for blacksmith´s work, except in Africa, India and Southeast Asia, places where these traditional artisans are still located.
A famous blacksmith, although mythical, was the Greek god Hephaestus (Vulcan for the Romans), whose forge was a volcano, where he made the weapons for the gods.