4040 industrial aluminum profile is one of the most commonly used profiles, mainly used in the rapid assembly of frame structures, the product has high capacity and physical properties. It is widely used in the fields of industrial manufacturing, automation, and logistics and warehousing. Combined with profile accessories, it is convenient for designers to quickly realize their frame ideas. The outer dimensions of each model of 4040 profiles are the same, but the cross-section, thickness and design are different. The physical properties and thickness are difference according to the cross-section of the profile, can be selected according to your needs.