Electric heating tube is specially designed to convert electrical energy into heat energy. It is cheap, easy to use, easy to install, no pollution, and widely used in all kinds of heating. The service life of electric heating tube is very long, the general design service life is over 8000 hours. It has simple structure, high mechanical strength & heating efficiency, good reliability, easy installation and long service life. It is widely applied to apparatus such as nitre tank, water tank, oil tank, acid and alkali trough, the fusible metal melting furnace, air heating furnace, drying oven, drying oven, hot pressing mould, etc. (customizable if special needs)