Color coated roll is a product made from hot-dip galvanized sheet, hot-dip aluminum-zinc sheet, electrogalvanized sheet, etc. as substrates, after surface pre-treatment (chemical degreasing and chemical conversion treatment), one or several layers of organic paint are applied to the surface, and then baked and cured. Color coated rolls are lightweight, aesthetically pleasing, and have good corrosion resistance. They can also be directly processed and are generally classified into gray white, navy blue, and brick red colors. They are mainly used in the advertising industry, construction industry, home appliance industry, electrical appliance industry, furniture industry, and transportation industry.

Aluminum is a silver white light metal. It has extensibility. Products are often made into rods, sheets, foils, powders, ribbons, and filaments. A layer of oxide film can be formed in humid air to prevent metal corrosion. Aluminum powder and foil can burn fiercely when heated in the air and emit a dazzling white flame. Easily soluble in dilute sulfuric acid, nitric acid, hydrochloric acid, sodium hydroxide, and potassium hydroxide solutions, but insoluble in water. Relative density 2.70. Melting point 660 ℃. Boiling point 2327 ℃. The development of the three important industries of aviation, construction, and automotive requires the unique properties of aluminum and its alloys in material properties, which greatly facilitates the production and application of this new metal aluminum. The application is extremely extensive.

Copper is a non-ferrous metal closely related to humans and is widely used in fields such as electrical, light industry, mechanical manufacturing, construction industry, national defense industry, etc. It is second only to aluminum in the consumption of non-ferrous metal materials in China. Copper is a red metal and also a green metal. Say it's green metal. Copper is also a durable metal that can be recycled multiple times without compromising its mechanical properties.

Profiles are materials with specific cross-sectional shapes made of metal or non-metal through rolling and other processing, and are widely used in construction, machinery and other fields.