What are the quality standards for color steel sandwich panels?
Look at the weight of the foam board!
Reference to national standards: GBT_23932-2009_ Building metal surface insulation sandwich panels
Reference to national standards: GBT_23932-2009_ Building metal surface insulation sandwich panels.
Color steel: sandwich board English name: color steel laminboard, the product is composed of two layers of metal panels (or other material panels) and directly in the middle of the panel foam, mature molding of the composition of the polymer core insulation. These sandwich panels are easy to install, lightweight and efficient.
