There are various materials of hollow ball that can be processed, such as:
Stainless steel
Stainless steel is one of the popular materials used in various products. In the past, it has been used in making beads to produce jewelry. Stainless steel can be processed in the machine to make beads as well. Stainless steel doesn't react with oxygen, so it is corrosion resistant as well, which makes it great for various applications. It offers a shiny look, and that's why it is used in making various products in both the jewelry and hardware industry.
Gold
Gold can also be processed with the machine. Gold jewelry is in high demand as well. Gold looks very attractive as well, and it is one of the high selling materials on the market. The high use of goal beads can be found in the jewelry industry.
Silver
Silver is cheaper and easily available. It has a high demand as well and is used for making various products. Silver is also processed to make silver bracelets and beads as well.
Copper
Copper can also be processed with this ball making machine to produce copper beads.