... Excellent roofing materials, 2)Widely used for dormer windows, skylights, extended porches 3)Widely applied to ... corridors, passages and subway entries.6) Walls, roofs, windows, screens and other high quality indoor decoration materials.7 ... sign boards.11)Unbreakable material for glazing widows, roof glazing.12)Non-toxic, keeping in touch with ... agricultural greenhouses,etc. pc sheet for roof