Building materials being non-metallic, namely, timber for building, construction elements of timber, hardwood decking boards, softwood decking boards, wooden decking boards, construction timber, nonmetallic cladding materials, wainscotting, not of metal, panel mouldings of non-metallic materials, hardwood boards, slates for wall cladding, non-metallic cladding panels, non-metallic wall claddings; nonmetallic rigid pipes for building; asphalt, pitch and bitumen; non-metallic transportable buil...