Transportable structures and constructions, not of metal; statues and works of art, made of materials such as stone, concrete and marble, included in class in the class (term considered too vague by the International Bureau pursuant to the Rule 13 (2) (b) of the Regulations); non-metallic building and construction materials and elements; doors, gates, windows and window coverings, not of metal; wood and artificial wood; stone, rock, clay and minerals; pitch, tar, bitumen and asphalt; asphalt, pitch and bitumen; non-metallic armouring; armouring, non-metallic; prefabricated paving blocks; aluminium cement; chippings; plaster filling mixes.