... and other surface anti-corrosion layer. Ring of PTFE, PTFE gasket, PTFE packing, etc. are widely used in various types ... , it can be used for spinning, fiber PTFE - Teflon (foreign trade name Teflon). PTFE (Polytetrafluoroethene, commonly known as "non-stick coating ... glass fiber and asbestos, plastic anti-flaming agent. 4.PTFE products in chemical, mechanical, electronic, electrical, military, ...