There are three kind of Teflon rod. Selecting dispersion polymerization Teflon resin and after cataplasm bulldoze, the rod whose diameter is 4mm-9mm is produced; Selecting suspend Teflon resin and after extrusion the rod whose diameter is 10mm-50mm is produced; While the rod with 55mm-300mm diameter by die pressing. In known plastic, Teflon has the best ability to anti chemistry corrosion and medium performance, non-aging, non-sticking, and can be used under -180-+260 temperature without load, and it has the lowest friction coefficients in known solid materials.