The specific operation is as follows:
1, prepare a rectangular piece of tin foil paper first.
2. Fold up a part of the paper.
3. Fold a part again.
4. Fold the corners upwards respectively.
5. Fold the top down.
6. Tear this gap from the side.
7, slowly finishing, you will get the shape of an ingot.
8. The finished product drawing is shown in the following figure.
Precautions:
1, the folding process of paper ingots is simple, and it is easy to get started after several folds.
2. For safety reasons, it should be stored in a dry and fire-free place.