... 3.length 900mm,1m,2m 4.wooden cast package PTFE sheet Polytetrafluoroethylene [PTFE, F4] is one of the best corrosion resistance ... other area. PTFE seals, washers, gaskets, PTFE seals, gaskets, sealing washer is made from optional suspension polymerization PTFE resin molding. PTFE compared with ... excellent features, it has been widely used as a sealing material and filler material. A high degree of ...