... valve seats, selflubricating bearings, piston rings etc.Hose tube made from PTFE powder has the performance as wide service temperature range ... plastics, PTFE has the best corrosion-resistance and dielectricityFeature: With the coupling in both ends, the SS braided TEFLON hose has the ... , non-stick, and will be long life service.Inside: PTFE hose, for high and low temperature used, anti-corrosive, non- ...