... .Pressure:6.4Mpa 4.used for sealing Pure PTFE O ring seal: PTFE O ring seall: 1.100% PTFE 2.ISO 9001 ... .Pressure:6.4Mpa 4.used for sealing.Characteristics for PTFE O ring seal:1.High working temperature,2.Anti-corrosion,3 ... . Teflon gasket,PTFE sealing gasket,PTFE seal,O ring seal Teflon seal PTFE sealing gasket,O ring seal Teflon gasket,Teflon seal ...