19 Plastic building materials, namely, plastic floorboards, plastic wallboards, plastic partitions for building, plastic roof panels, plastic skylights; prefabricated and portable non-metal buildings; building glass; window glass, except glass for vehicle windows, namely, window glass for building; windows, not of metal; signs, not of metal, non-luminous and non-mechanical; beacons, not of metal and non-luminous; outdoor blinds, not of metal and not of textile