... circumstance which needs high-temperature resistant and corrosion-resistant. It has perfect high-temperature resistance and corrosion resistance. 2. Operating CharacteristicsRated Voltage ... wire & cableFF4H3-2Silver-plated, copper conductor, PTFE insulated, FEP sheathed wire & cableFF4P21H3-2Silver-plated, copper conductor, PTFE insulated, silver-plated, round copper wire braided shield ...