Fluorine lined valve, also known as fluorine plastic lined corrosion resistant valve, is the polytetrafluoroethylene resin (or profiles processed) molded (or inlaid) method is placed on the inner wall of steel or iron valve pressure parts (the same method is suitable for all kinds of pressure vessels and pipeline accessories lining) or the outer surface of the valve inner parts, Various valves and pressure vessels are manufactured by its unique performance in resisting strong corrosive media.