O-ring, Rubber ring, Seal ring main type: America O-RING KIT, Europe O-RING KIT, Japan O-RING KIT. VITON O-ring, Silicone O-ring, Nitrile O-ring, EPDM O-ring, HNBR O-ring, CR O-ring, NBR Rubber ring, Nitrile Rubber ring, NR Rubber ring, CR (Neoprene) Rubber ring, SBR Rubber ring, EPDM Rubber ring, HNBR Rubber ring, SILICONE Rubber ring, VITON Rubber ring, NBR Seal ring, Nitrile Seal ring, NR Seal ring, CR (Neoprene) Seal ring, BUNA Seal ring, EPDM Seal ring, HNBR Seal ring, SILICONE Seal ring, VITON Seal ring, FLS Seal ring. Plastic ball, Rubber ball main type: 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. O-Ring, Rubber ring, Seal ring, Rubber ball, Plastic 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.