19 [ Partitions with frames, not of metal, for building; partitions, not of metal, for building; building materials, not of metal, namely, being framework for buildings, laths, wall or ceiling panels, door panels, doors, ceilings, window glass; ] [ * Non-metallic * transportable buildings; not of metal; ] * non-metallic transportable structures; * * non-metallic * reinforcing materials, [ not of metal, ] for building; * non-metallic * window frames; [ not of metal; ] non-metallic door frames; [ tiles, not of metal, for building; framework, not of metal, for building; window casings, not of metal; door casings, not of metal; staircases, not of metal; ] * non-metallic * windows; [ not of metal; ] * non-metallic * door frames; [ not of metal; ] * non-metallic * wainscoting; [ not of metal; ] * non-metallic * parquet floor boards; [ not of metal; ] * non-metallic * laths; [ not of metal, stair-treads being steps, not of metal; wall claddings for building, not of metal; building panels, not of metal; wall linings, not of metal, for building; ] parquet flooring; [ ceilings, not of metal; floors not of metal; door panels, not of metal; doors, not of metal; ] * non-metallic * posts; [ not of metal; ] * non-metallic * palisades; [ not of metal; joists, not of metal; ] * non-metallic * beams; [ not of metal; roof coverings for building, not of metal; tile flooring, not of metal; ] * non-metallic girders; non-metallic * fences; [ not of metal; ] non-metallic ducts for [ ventilation ] * ventilating * and air conditioning installations; [ * non-metallic * transportable * buildings; ] * non-metallic transportable structures; * [ constructions, not of metal; ] * non-metallic * cornices; [ not of metal; ] * non-metallic * angle irons; [ not of metal; ] * non-metallic * roof gutters; [ not of metal; roof coverings, not of metal; roofing, not of metal; paving slabs, not of metal; tiles, not of metal; jalousies, not of metal; ] * non-metallic * lintels; [ not of metal; ] [ * non-metallic * shutters; not of metal; ] common sheet glass for building; insulating glass for construction purposes; window glass for building, excluding glass for vehicle windows; stained-glass windows