19 Non-metallic construction materials, namely, plastic tubes for construction; non-metallic prefabricated verandas; non-metallic windows and doors, and non-metallic garage doors; non-metallic hanging doors; non-metallic window casings; non-metallic stoppers; non-metallic door and window frames; non-metallic door casings; non-metallic window sashes, rollers, hinges, glazing cross bars, glazing mouldings, sash fasteners, door and window wood and plastic handles and lever handles; non-metallic panels, with or without windows, for doors and especially front doors; hanging shutters; non-metal window and rolling window shutters; insulated glass; glass and non-metal insulating door; non-metal double pane windows; non-metal louvered windows and bullet-proof non-metal windows and glass panels; stained glass windows; non-metallic profiles, namely, polyvinyl chloride profiles from manufacturing, decorating or renovating windows, polyvinyl chloride wall and window structures for manufacturing, decorating or renovating windows, doors and verandas