PTFE sheet has the following excellent properties due to its strong fluorocarbon bond and large molecular weight: wide temperature range: -200℃~+280℃; anti-corrosion chemicals; adhesion; extremely low friction coefficient; non-combustibility; excellent electrical properties ( (Does not change with frequency and temperature); excellent mechanical properties, impact resistance and elasticity; no aging problems; moisture-proof ultraviolet radiation; non-toxic. It is a commonly used carbon steel pipe lined with polytetrafluoroethylene (PTFE) material with good chemical stability, which is formed by cold drawing or rolling. PTFE plates are widely used as high and low temperature resistant, corrosion resistant materials, insulation materials, anti-sticking coatings, etc. in the industries of atomic energy, aerospace, electronics, electrical, chemical, machinery, instrumentation, instrumentation, construction, textile, food and other industries. It not only has the mechanical properties of steel pipes, but also has the corrosion resistance and slow scaling of plastic pipes. The characteristic that microorganisms are not easy to grow is an ideal pipeline for conveying media such as acid, alkali, salt, corrosive gas and so on. PTFE tube is a plastic lined tube. High price, high temperature resistance and corrosion resistance. It is generally used as a pipeline for transporting highly corrosive liquids such as strong acids and bases.