Rust treatment refers to the methods used to remove or prevent rust, which is the corrosion of metal caused by moisture and oxygen. Common techniques include sanding or scraping the rusted area, applying a rust-inhibiting primer, and painting over the surface to protect it from further exposure. Preventive measures, such as using rust-resistant materials or applying protective coatings, can help avoid rust formation. Regular maintenance, including cleaning and inspecting metal surfaces, is essential to prolong the life of metal objects and structures, ensuring they remain functional and visually appealing.