How do I clean aluminum sheets to maintain their appearance?

To clean aluminum sheets and maintain their appearance, follow these steps: 1. Use a mild detergent mixed with warm water to create a cleaning solution. 2. Gently scrub the aluminum sheets with a soft cloth or sponge to avoid scratching the surface. 3. Rinse thoroughly with clean water to remove any detergent residue. 4. Dry the sheets immediately with a soft, dry cloth to prevent water spots. 5. For stubborn stains, use a non-abrasive cleaner specifically designed for aluminum. 6. Avoid using harsh chemicals or abrasive materials that can damage the aluminum's finish. Regular cleaning will help preserve the appearance and longevity of aluminum sheets.