PTFE products are widely used in petroleum, chemical industry, machinery, automobile, metallurgy, electric power and medicine and foodstuffs. It has excellent comprehensive performance: high and low temperature resistance (-192 ℃ -260 ℃), corrosion resistance (strong acid, strong Alkali, aqua regia, etc.), weather resistance, high insulation, self-lubricating, non-adhesive, non-toxic and other excellent features. Through the addition of glass fiber, metal copper, graphite, molybdenum disulfide, carbon fiber, polyimide and other fillers, the mechanical properties of the material to obtain a greater improvement for different uses of products to improve performance and life.