In France in the middle of the 19th century, due to the backward technology of smelting aluminum, the Princes could only use silver tableware at the banquet. Only Napoleon II used the aluminum bowl.
With the application of electrolytic aluminum technology, aluminum has become more and more popular; the development of aluminum alloy surface treatment technology has made aluminum metal with high practical value both aesthetic value.

Metal materials are increasingly used in various existing products, because metal materials can better reflect product quality and highlight brand value. Among many metal materials, aluminum is the first to be adopted by various manufacturers because of its easy processing, good visual effects, and rich surface treatment methods.The surface treatment of aluminum profiles is mainly divided into: sandblasting, polishing, wire drawing, electroplating, and spraying.

Sandblast
The process of cleaning and roughening the metal surface by the impact of high-speed sand flow. The surface treatment of aluminum alloy processing parts by this method can obtain a certain degree of cleanliness and different roughness of the surface of the workpiece, and improve the mechanical properties of the surface of the workpiece. Therefore, this surface treatment method improves the fatigue resistance of the aluminum alloy, increases the adhesion between it and the coating, prolongs the durability of the coating film, and is beneficial to the leveling and decoration of the coating.

Polishing
Using mechanical and electrochemical methods to reduce the surface roughness of the workpiece to obtain a bright, flat surface processing method. The polishing process is mainly divided into: mechanical polishing, chemical polishing, electrolytic polishing. The aluminum parts can be close to the stainless steel mirror effect after mechanical polishing + electrolytic polishing, giving people a sense of high-end simplicity and stylish future.

Drawing
Metal wire drawing is a manufacturing process that repeatedly scratches aluminum plates with sandpaper. Drawing can be divided into straight drawing, random drawing, spiral drawing, thread drawing. The metal wire drawing process can clearly show each tiny silk mark, so that the metal matte has a fine hair shine, and the product has both fashion and technology sense.

High-gloss cutting
Using a carving machine, the diamond knife is reinforced on the high-speed rotating carving machine spindle to cut parts, resulting in local highlight areas on the product surface. The brightness of the cutting highlight is affected by the speed of the milling drill. The faster the drill speed is, the brighter the cutting highlight is, and the darker it is, the more easy it is to produce cutting marks.

Anodizing
Anodizing refers to the electrochemical oxidation of metals or alloys. The process of forming an oxide film on aluminum products under the corresponding electrolyte and specific process conditions due to the applied current.Anodizing can not only solve the defects of aluminum surface hardness, wear resistance, etc., but also extend the service life of aluminum and enhance the aesthetics.

Two-color anodizing
Two-color anodizing refers to anodizing on a product and giving different areas a different color. Two-color anodizing is more costly due to the complicated process; but the contrast between the two colors can better reflect the high-end and unique appearance of the product.