12 WOOD, TILE, CONCRETE, ASPHALT, GLASS AND PLASTIC BLOCKS, SLABS AND PAVING UNITS FOR THE CONSTRUCTION OF BUILDINGS, AND FOR CONTINUOUS SURFACES ON BUILDINGS, ROADS, WATER CONSTRUCTIONS AND AIRPORT CONSTRUCTIONS, AND ON FLOOR COVERINGS AND WALL COVERINGS MADE OF WOOD, TILE, CONCRETE, ASPHALT, GLASS AND PLASTIC