... .Great electricity performance 3.great quality and high technique 1) product introducePolytetrafluoroethylene [PTFE, F4] is the world's ... chemical industry, petroleum, pharmaceutical and other areas of many problems.PTFE seals, gaskets, gasket PTFE seals, gaskets, sealing gasket ... molding process is made. PTFE compared with other plastic resistant to chemicals and temperature excellent features,It has ...