Steel is processed using techniques such as hot rolling, cold rolling, forging, and welding. It is used in construction, automotive, and manufacturing industries.
Aluminum is lightweight and corrosion-resistant. Processing includes extrusion, casting, and CNC machining. Common in aerospace and packaging.
Copper is known for its conductivity. It is processed through smelting, rolling, and electro-refining. Used in electrical wiring and electronics.
Brass is an alloy of copper and zinc. It is often cast or machined and used in decorative items, plumbing, and musical instruments.