Pure PTFE Gasket is made by cutting PTFE stick, pipe and sheet into flat shape, v shape gasket or shape of valve annulus. It has 100% PTFE structure and characteristics of high-temperature -proof, strong-corrosion-proof and clean. As a sealing element it can be used in flange joints of various equipments and pipes in chemical industry, food-producing industry, medicine industry and so on. It can bear the most bitter chemical medium, and has good anti-creeping performance.