19 ARTIFICIAL STONE; PAVERS; CONCRETE RETAINING WALLS; STEPPING AND FOOTING STONES OF CONCRETE OR WOOD FOR USE IN LAWNS AND PATHWAYS; NON-METAL CASTING FORMS FOR CONCRETE; CONCRETE BLOCKS; CONCRETE FOOTINGS; PAVING STONES; WALL STONE; SYNTHETIC ROCKS FOR CREATING LANDSCAPE AND WATERSCAPE SETTINGS; NON-METAL SEAWALLS; NON-METAL CONSTRUCTION PRECAST FOUNDATIONS FOR SITE LIGHTING FORTIFICATIONS