Combined board element with partial or whole surface electrical heating for various types of handicraft has protective coating on heating surface fixed to top surface with net or fiber armoring to increase mechanical flectional resistance

摘要

The board element is made of organic or inorganic material and has an electrical heating element over the entire surface or in part areas. It also has a protective coating on the heating surface that is also fixed to the top surface and that also has net or fiber type armoring to increase its mechanical flectional resistance.