... (alucobond) simple made of both side aluminum alloy (AA1100H18 , AA3003 , AA5005 ). Mirror Finished Double Sided Aluminum Composite Panels(1) Certificate: According to GB/T ... ) Light weight, flat surface and high strength 2) Excellent heat insulation, sound insulation, fire-resistance, Acid-resistance, alkali-resistance, weather-proof 3 ...