... (long-term work in the temperature of +250 °C to -180 °C). PTFE itself not toxic, but one of the raw ... have been regarded as a carcinogenic effect. Temperature -20 ~ 250 °C (-4 ~ +482 ° F), allow the cold and hot temperatures, or ... fine performance, high temperature resistance, corrosion resistance, non-stick, self lubricating, excellent dielectric properties, low coefficient of friction. Used as ...