https://www.rongdawire.com/products/polyester-imide-film-round-insulated-copper-magnet-wire-thermal-class-180/ Polyester-imide Film Insulated Round Copper Magnet Wire Thermal Class 180 Polyester imide enameled winding copper wire is an electromagnetic wire widely used in electrical equipment such as motors and transformers. It has the characteristics of high temperature resistance, electrical insulation performance, chemical stability, and good mechanical strength. Due to its excellent performance, it has a wide range of applications in the electrical and electronic industries, especially in situations with high temperature requirements, such as automotive electronics, industrial motors, transformers, and high-speed motors.