平常我们可见的铝制品，均已经被氧化。而这种被氧化的铝多呈现银灰色。铝元

The aluminum products we usually see have been oxidized. The oxidized aluminum is mostly silver-gray. The content of aluminum in the earth's crust is second only to oxygen and silicon, ranking third, and it is the most abundant metal element in the earth's crust. Because of its rich content and good performance, it is often made into rods, flakes, foils, powders, ribbons and filaments and is widely used in important industrial fields such as aviation, construction, automobiles, and electric power.

Usually, the aluminum products we can see have been oxidized. The oxidized aluminum is mostly silver gray. Aluminum is the most abundant metal element in the earth's crust, ranking third only to oxygen and silicon. Because of its rich content and good performance, it is often made into rod, sheet, foil, powder, strip and filament, which is widely used in aviation, construction, automobile, electric power and other important industrial fields.

The aluminum products that we can usually see have been oxidized. This oxidized aluminum is mostly silver gray. The content of aluminum in the earth's crust ranks third after oxygen and silicon, and it is the most abundant metal element in the earth's crust. Because of its rich content and good performance, it is often made into rod, sheet, foil, powder, ribbon and filament, which are widely used in important industrial fields such as aviation, construction, automobile and electric power.