Buildings, being wholly or principally non-metallic; pre-cast concrete building and structural components, including such components incorporating metal reinforcement; fasteners and/or connectors; civil engineering and road marking materials in this class; non-metallic articles for use in civil engineering construction; non-metallic articles for use in road construction; non-metallic panels and blocks for use in forming the facing of stabilised earth structures; concrete articles; natural and artificial stone; earth stabilising members; blocks; panels; parts and fittings for all the aforesaid goods