Before revision: Pig iron of a type used to make ductile iron, stored in a bin Pig iron , also known as crude iron, is an intermediate good used by the iron industry in the production of steel, which is developed by smelting iron ore in a blast furnace.
After revision: Pig iron upright=1.1|Pig iron used to manufacture ductile iron , also known as crude iron, is an intermediate good used by the iron industry in the production of steel, which is developed by smelting iron ore in a blast furnace.