19 NON METALLIC BUILDING MATERIALS, NAMELY, CEMENT BLOCKS, PAVING BLOCKS, BRICKS, CONCRETE, PORTLAND CEMENT, CEMENT MIXES, CONCRETE SLABS, CEMENT SLABS, CLAY SLABS, AND SLATE SLABS; RIGID CEMENT PIPES FOR BUILDINGS; PITCH, BITUMEN ASPHALT; NON-METALLIC TRANSPORTABLE BUILDINGS; STATUES FOR USE AS MONUMENTS MADE OF CONCRETE, MARBLE, STONE AND CEMENT