... Roofing light sheet and sunshade for office building,amusement center,hotel,stadium.2. skylight,lighting for corridors ,balcony,passages and subway ... heat preservation: The special spatial structure, can reduce the construction to adjust the warm energy consumption effectively .3. difficult ... opal ,clear,blue,brown, green .Produce: 2 lines for pc sheet and 1 line for pc solid sheet. Customized colors ...