As society continues to advance, industries such as electronics and food are rapidly developing. In the manufacturing processes of products in these industries, a high level of cleanliness in the production environment is required. Color coated steel sandwich panels, due to their surface color coated steel...Easier to keep dust-free, clean, and with fewer seams.So, as an interior wall and ceiling material, sandwich panels are widely used in production and work environments with clean requirements. Their applications range from the manufacturing of electronic and computer products, aerospace, precision instruments and equipment, to food production, and various other industries. Even in factories with lower cleanliness requirements, due to the flexibility of sandwich panels in disassembly and installation, polyurethane sandwich panels are also extensively used as interior partition walls.