19 Framework, not of metal, for building including greenhouses; windows made of plastics for greenhouses; coatings [building materials] for greenhouse panels and roofs of plastic, polycarbonates, polypropylene, polyethylene, and / or acrylics; roofing, not of metal or glass, for greenhouses; polycarbonate greenhouse panels; acrylic greenhouse panels; etfe greenhouse panels; polypropylene panels; building materials of plastic for building greenhouses; greenhouse frames, not of metal; pillars, not of metal, for greenhouses; smart plastic panels for greenhouses; smart plastic panels for greenhouses for regulating the air temperature, soil temperature, energy transfer and / or water usage within the structure; parts and fittings for all of the aforementioned.