There is a big round hole in the middle of the Alumina Weldable Tile, which is fixed by sticking first and then welding. The iron cap is welded with the steel plate through the middle round hole, and then the porcelain cap is used to protect the welding point. Compared with the adhesive lining, the welded lining has stronger impact resistance and can withstand higher temperature, which solves the limitation of the adhesive affected by temperature.