You have to cut the beverage can to make a flat metal post, now you have to cut a rectangle by 10.7 cm per 4 cm and in this rectangle draw a rectangle with 10.7 cm per 2, 5 cm, now you have the forehead pattern .
Now we have to cut the metal with a scissors around the rectangle.
Turn the edges down and remove the pattern. Shift around the agent and cut about two-thirds of the centimeter. It must be like fig1 if it has not done so again.