... plunger extrusion of suspension polymerized PTFE resins. So that the fiber orientation, and after drying, high temperature sintering ... ID and OD. Among all the existing plastics, Extrusion PTFE has the best corrosion-resistance and insulated property ... 0.25,6,6.5,7,7.5,8.....The British System:4.35,4.8,5.6,6. ... experience in PTFE Filed, we can provide you the PTFE product which is just suitable or even ...