A certain ancient ability, good at making strange things. One day, I want to get a thing, and I want a fluorinated sheet of aluminum and magnesium. Then I visited all kinds of materials, seeking the superiority of this sheet.

In the mine, select the essence of aluminum and magnesium, and refine it with a secret method. At first, melt aluminum and magnesium, hot and pure. Afterwards, add fluoride, mix it evenly, observe its color change, and smell its difference.

After many times beating and grinding, the thin sheet is even and thin, and the light can be distinguished. After this thing is formed, its quality is strong and light, and its color is bright, and it has a strange quality.

Craftsmen use their tools, which are beautiful and widely used, either for decoration or for use. They are all very exquisite. Everyone at the time praised their ability and passed on their skills to future generations.