1.own the most production lines for extruded rod in China 2.high quality with lowest prices 3 ... good quality There are two types of PTFE rods. The rod with diameter of 4 - 9mm is made by paste ... extrusion of dispersion polymerized PTFE resin; the rod with diameter of 10 - 50mm is made by ram extruding method, ... 0002) SFxBN:a) Diameter (mm): 4, 5, 6, 7, 8, 10, 12, 15, 16, 18, 20, 25, 30, 35, 40, ...