A profile is an object with a certain geometric shape made of iron, steel, and materials with certain strength and toughness through processes such as rolling, extrusion, and casting. This type of material has a certain appearance size, a certain cross-sectional shape, and certain mechanical and physical properties. Profiles can be used independently or further processed into other manufactured products, commonly used in building structures and manufacturing installations. Mechanical engineers can select the specific shape, material, heat treatment status, mechanical properties, and other parameters of the profile according to design requirements, and then divide the profile according to specific size and shape requirements, and further process or heat treat it to achieve the accuracy requirements of the design. The material, specifications, and dimensions of the profiles can refer to the corresponding national standards.