The PTFE tube is made of high quality plunger extrusion tube. It adopts special processing technology to make the steel tube and plastic tube tightly combined. It can withstand positive pressure of 1.6Mpa, negative pressure: 77Kpa, and can be used at -60°C～+260. It is used normally in °C and has reliable and excellent corrosion resistance. It transports highly corrosive gases and liquids at high temperatures, which cannot be replaced by other pipes. Uses: wire insulation sheath, corrosive fluid medium pipeline, electrical insulation parts used at various high frequencies.