Polytetrafluoroethylene insulation rods, with their excellent physical and chemical properties, are used for self-lubricating bearings, piston rings, oil seals, and sealing rings, reducing wear and component heating, and reducing power consumption. Especially playing an important role in multiple fields such as electrical, chemical, and mechanical engineering. By understanding its material properties, manufacturing processes, and application areas, we can better utilize this material and contribute to the development of related industries.