Our Interior Powder-Coated Aluminum Honeycomb Panels Features extra-large panel sizes with minimal deformation; powder coating carries a 5-year warranty. Eco-friendly and odor-free, it provides an exceptionally flat wall surface after installation, suitable for high-end interior walls and ceilings in conference halls and office buildings, delivering premium quality upon procurement.ChangSheng Zhengji Exterior Powder-Coated Aluminum Honeycomb Panels Combines the strength of the honeycomb core with the weather resistance of warrantied powder coating (meets Grade I). Offers exceptional wind load resistance, making it ideal for outdoor billboard substrates, building large eaves, and canopies, ensuring long-term safety and stability.