Plastic ball, Rubber ball May divide into according to the material: Polyurethane Plastic ball, Delrin Plastic ball, Nylon Plastic ball, Polypropylene Plastic ball, POM Plastic ball, PP Plastic ball, PA Plastic ball, NBR Rubber ball, Nitrile Rubber ball, NR Rubber ball, CR Rubber ball, BUNA Rubber ball, SBR Rubber ball, EPDM Rubber ball, HNBR Rubber ball, SILICONE Rubber ball, VITON Rubber ball. Plastic ball, Rubber ball precision achieved +/-0.02 to 0.001 mm, not gather the mold line, none the fragments, the surface is smooth, high-tech, the high quality, provides for the high precise customer selects. The Plastic ball, Rubber ball uses in astronautics, the automobile, the medical service, the drugs manufacture, the satellite, the valve, pump, the bathroom, the electron, the electric appliance, and so on industry.