Sandwich panels are an efficient building material widely used in the walls, roofs, and ceilings of industrial, commercial, and residential buildings. They consist of two layers of external color-coated steel sheets (PPGI or PPGL) and insulating core materials such as polyurethane (PU), polystyrene (PS), or rock wool, offering excellent thermal insulation, soundproofing, and fire-resistant properties. Sandwich panels are not only cost-effective but also quick to install, providing high energy efficiency, making them an ideal solution for modern building needs. Sandwich panels made from Aoguan's antibacterial, anti-static, or purification board color-coated coils have the main advantages of long-lasting antibacterial effectiveness, durable substrate characteristics, and cleanroom performance that meets stringent environmental requirements, making them suitable for use in hospitals, food workshops, and cleanrooms. The main advantages of Aoguan color-coated boards used for making sandwich panels include their outstanding durability, excellent processing and bonding performance, good economy, and the resulting overall benefits.