An aluminum bar is a long, rectangular-shaped piece of aluminum metal, characterized by its lightweight yet strong properties. It offers excellent corrosion resistance and good conductivity, making it versatile for various applications. Aluminum bars are commonly used in construction, machinery, and electrical industries for framing, structural support, and as conductive elements due to their ease of machining and welding.

Copper tube, also known as purple copper tube. A type of non-ferrous metal tube, which is a seamless tube made by pressing and drawing. Copper pipes have the characteristics of good conductivity and thermal conductivity, and are the main materials for conductive accessories and heat dissipation accessories in electronic products. They have become the preferred choice for modern contractors to install water pipes, heating and cooling pipes in all residential commercial housing. Copper pipes have strong corrosion resistance, are not easily oxidized, and are not prone to chemical reactions with some liquid substances, making them easy to bend and shape.