How is radius Arm in trucks manufactured? Which process is used? Especially in ford trucks. Casted?/forged?

How is radius Arm in trucks manufactured? Which process is used? Especially in ford trucks. Casted?/forged?

Wikipedia: Radius rods are customarily made of stamped steel or aluminum for lightness, as they are part of the vehicle's unsprung weight. Improvements in composite materials technology make possible plastic suspension links, although they are still uncommon.