First, look at the foaming density. Metal carved outdoor decorative wall panels are generally used for thermal insulation and decoration of external walls, and need to have thermal insulation and other properties. The high-quality board has a very high foam density. The board is very hard and can be squeezed by hand. If the foam layer is not deformed, it means its quality is quite good!
Second, look at the quality of galvanized color steel plate. As a decorative panel for exterior wall insulation, its exterior coating is very important. Observe its thickness, and then break it with your hands to see if it is easy to deform. If it is not deformed, it means that the manufacturer uses a specially treated fluorocarbon paint-coated galvanized color steel plate.
Third, look at the anti-corrosion aluminum foil on the back. It can be burnt with fire, and what is left is a metal wire with good quality, relatively good reflective heat insulation and tear resistance.
Four, listen to the sound. Lightly tap the metal carved panels on the exterior wall to hear whether the sound is crisp and whether there is a sound of metal breaking;
Five, look at the date. The product life cycle of different materials is different. When purchasing, it is best to purchase products with relatively new production dates and no damage during transportation.
