As some of the friction parts of the equipment should not be lubricated, such as in the lubricating grease will be dissolved solvent and failure occasions or paper, pharmaceutical, food Product, textile and other industrial fields need to avoid lubricating oil contamination, filling PTFE material into mechanical equipment parts oil-free lubrication (straight The ideal material for carrying loads. This is because the friction coefficient of the material is the lowest known solid material. Its specific USES include for Bearings for chemical equipment, papermaking machinery, agricultural machinery, used as piston rings, machine guide, guide rings: widely used as Bridges in civil engineering,Tunnel, steel structure roof frame, large chemical pipeline, storage tank support block, as well as bridge support and bridge turnabout.