... a new kind of building material, which is strength, heat insulation and good light-transmission. Due to their excellent ... ,hotel,stadium,school ,amusement center ,hospital,etc.2. skylight,lighting for corridors ,balcony,passages and subway entries ,walkways.3. ... AmericanEastern EuropeanSouth AsiaAfricanOceaniaMid EastEastern AsiaWestern EuropeAsia Competitive PRICE polycarbonate lighting shield