PTFE Gasket packingd with Glass fiber is a real premium and unique material. it is excellent in condensability,elasticity, sealing performance, and unique torque keeping performance. compared with traditional PTFE , it has improvement in cold-flow, creeping, and also keeping the load of bolt which made the sealing more ourable and reduce the maintenance of flange. the excellent performance of packing ptfe gasket made it more popular than the traditional PTFE . the widely use of this product dedicated to the improvement of the environment and the saving of cost. it is used in chemical industry, petrofaction, the reaction of hydrocarbon, electric power plant. AT925 is one of best suit in food, paper pulp, paper making, medicine industry, which belong to the environmental protection.