Alodine is a chemical coating. Used to passivate and protect the workpiece from corrosion. Alodine is widely used          in chemical industries such as electroplating, welding, alloy manufacturing, pigments, and leather making.

     Anodizing is an electrolytic passivation process. During this process, an oxide film is formed on the surface of the           product. This oxide film has protective, decorative, and other functional properties.

     Black oxide is also an oxide film. Mainly used to increase the corrosion resistance and appearance of the product,         and to minimize light reflection. Suitable for surface treatment of steel and stainless steel products.

     For Electroless nickel-plating, the plating solution is generally nickel sulfate, nickel acetate, etc. as the main salt.         The coating shows superiority in uniformity, corrosion resistance, hardness, solderability, magnetism, and decoration.

     Electrolytic polishing is an electrochemical process, which is used to improve the surface finish of the product.               Suitable for polishing steel, aluminum, copper, nickel, and various alloys.

     Nickel plating is the process of depositing nickel on the surface of metal parts. It can effectively improve the surface       gloss, corrosion resistance, and abrasion resistance of the product.

     Sandblasting is a process of cleaning and roughening the surface of the product using the impact of high-speed            sand flow. Its function is to make the surface of the workpiece obtain a certain degree of cleanliness and different          roughness.

     Passivation is a chemical reaction. It can delay the corrosion rate of metal materials and effectively increase the             service life of the product.

     Powder coating is a process of applying dry powder coating to metal surfaces. Powder coatings are usually applied       electrostatically and then cured under heating or ultraviolet light.

     Brushing is a surface treatment method that forms lines on the surface of the workpiece by grinding the product to         achieve a decorative effect. Make the product more beautiful.