19 Building materials not of metal and, in particular, plates being reinforcements for concrete and wood building construction, boards, manufactured brick veneer for use on surfaces, staircases, floorings, coatings in general being bituminous roof coatings, and columns made of stone materials; cladding, not of metal, for building; decorative tiles not of metal for chimney hearth extensions; Mineral pellets for use in the building industry; window sills, not of metal; non-metallic door jambs; tiles, not of metal, for building consisting of synthetic paving materials; laminated building materials not of metal, namely, laminated flooring and drywall; covering sheets not of metal for roofs and floors; laminated silica particleboard; Pre-fabricated buildings not of metal and ceramic tiles; textured surfaces for walls not of metal, namely, manufactured cement, marble, wood, and stone veneer for use on exterior surfaces; relief surfaces for walls, namely, wood, marble, cement, stone veneers; textured surfaces for ceilings, namely, ceiling panels of stone, cement, marble and wood