Used for internal wiring of moving parts, space-saving equipment wiring, and relay lead wires. Excellent in heat, cold, weather and oil resistance, single core and ideal for moving parts of robots or space-saving moving internal wiring. It is a single wire covered with fluorine resin. You need some tips, but applying heat to the cross section with a soldering iron causes the coating to shrink slightly, so you can work without peeling the coating with a wire stripper.