PTC heating core is a new kind heater in the market. 

It is fixed by a pair of metal electrodes with leads on both sides of PTC elements.

Additionally，by covering insulated film on the metal electrodes，the surface-insulated heating core is finished. The

 simple-structure heater gives our constant-temperature heat and does not need any additional temperature applications.

The high insulationintension heater has many advantage such as security，giving outheat continuously and keeping 

steady power ，being used in a large range of voltage and so on.

     PTC heating elements have been widely used for hair permanent clamp，hair curler, face sauna , heat preservation 

plate，electric mosquito killer，physical therapy apparatus，hot melt glue gun and other automatic heat preservation devices.