It is mainly used for heating injection molding machine, extruder and blow molding machine in plastic industry. The operating temperature can reach 600℃, and the maximum surface load is 8W / C . It is characterized by fast heating speed, high heat utilization rate, significant energy saving (30% lower energy consumption), high temperature creep resistance, long service life, high temperature resistance and high insulation. It is one of the most suitable electric heaters for plastic extrusion machinery, plastic film blowing machinery and chemical fiber machinery.