... .polytetrafluoroetylene is shot for PTFE, F4 3.High temperature, low temperature resistance polytetrafluoroetylene ... , chemical, machinery, equipment, instrumentation, construction, textile, metal finishing, pharmaceutical, medical, textile, food, metallurgical smelting ... of the PTFE. Filled varieties of glass fiber, metal, metal oxide, graphite, disulfide, molybdenum, carbon slender, polyimide ...