... 300x300mm, different sizes are available.2)rigidity and consistency 3)Materials:1100 aluminum alloy or stainless ... 300x600mm, 600x600mm and 600x1200mm,610×1220mm, 2)Equipped in: both romm, underground,shopping malls, offices, high-rise buildings, hotels, ... metro stations, bus stations, train stations, government buildings, gym buildings, library buildings and etc.3)Materials: High quality 1100 aluminum ...