Aluminum balls are spheres made of aluminum or aluminum
alloy, which are lightweight and corrosion-resistant.
With a density of approximately 2.7g/cm³, they are
significantly lighter than steel yet possess sufficient
strength, making them widely used. They come in two
types: solid and hollow. In industry, they are commonly
used as bearing balls, valve components, or
wear-resistant parts in chemical equipment. In
scientific research, they are utilized in physical
experiments or material testing. In daily life, they are
also commonly found in toys, decorations, or sports
equipment.