... 3.length 900mm,1m,2m 4.wooden cast package PTFE rode Polytetrafluoroethylene [PTFE, F4] is one of the best corrosion ... , sealing washer is made from optional suspension polymerization PTFE resin molding. PTFE compared with other plastics are resistant to chemical corrosion ... . Suspended resins are molded forming sintered approach, the obtained rods, plates or other shapes can be further car planing, ...