Air-cooled electric heater series use tubular electrical heating component for heating body, component will be  bent and put into mold which can cast into various shapes, circular, flat, rectangular, air-cooled, water-cooled, and other special-shaped etc.. After finishing it， and it will be`connected with heated body tightly, the surface load can reach 3-4.5WCM2. In order to quick heating, uniform heating, good thermal conductivity, long service life. This product is currently one of the ideal heaters at home and abroad. Regarding to the unit surface load requirements higher heaters, it can also be made into a variety of cast copper or cast iron heating plate、 heating ring according to user requirements，and the surface load can up to 6-7W/CM2 .