The manufacturing technology of precision plastic hollow pepper balls is made by welding two hemispheres, while ordinary plastic hollow pepper balls are produced by blow molding. Because of different processes, the quality of the manufactured plastic hollow pepper balls is the same. The precision plastic hollow pepper balls have high strength and good precision, and can be used as functional accessories in industries such as industry, machinery and electrical appliances.

However, ordinary plastic hollow pepper balls can only be used as covering hollow pepper balls on some liquids because of their low precision and strength. After the precision plastic hollow pepper balls are made into hollow blank balls by welding process, they need to be professionally ground by special plastic pepper ball milling machine. The precision of precision plastic hollow pepper balls can reach within ±0.02MM, which can basically meet the requirements of customers for precision plastic hollow pepper balls.