Four-fluorine pipes are made of high-quality plunger extruded tubes, utilizing special processing techniques to ensure a tight bond between steel and plastic tubes. They can withstand positive pressure of 1.6Mpa and negative pressure of 77Kpa; they can operate normally within the temperature range of -60℃ to +260℃ and possess reliable, excellent corrosion resistance. They are suitable for transporting highly corrosive gases and liquids at high temperatures, which is something that other pipes cannot replace.