Referred to as FKM or VT O-ring, it has very good oil resistance, high temperature resistance, corrosion resistance, aging resistance and other excellent characteristics.

Referred to as NBR O-ring, it is a synthetic rubber O-ring made by copolymerization of butadiene and acrylonitrile. It has excellent wear resistance, air tightness and oil resistance.

Referred to as SL ring, it has good electrical insulation, high temperature resistance, non-toxic and tasteless, excellent cold and heat resistance, and antistatic properties.

Coated O-ring is a kind of O-ring that shows good non-stick, sliding and moisture resistance after spraying on the surface of rubber O-ring.

The rubber seal ring can be divided into fluorine rubber, silicon rubber, nitrile rubber, neoprene, EPDM, polytetrafluoroethylene, etc.

The English name of O-rings is O-rings, which is a round (O-shaped) cross-section rubber sealing ring, which is generally installed in a groove with a rectangular cross-section on the inner or outer circle for sealing.

It is a seal composed of a relatively thick inner core made of relatively thick silicone rubber or fluorine rubber and a relatively thin combination of various outer covering materials such as PTFE/FEP/PFA