VITON o ring, Silicone o ring, NBR o ring ,EPDM o ring, PU ring, HNBR ring, NR ring, Rubber plate, high tech produces the factory. The product 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 _disibledevent="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"> thousand kinds.