XBLOC

Building materials, namely, concrete and concrete like materials, namely, blocks and armor units comprised of unreinforced concrete; non-metallic building materials and elements, namely, articles of concrete and concrete like materials for construction purposes, namely, blocks and armor units comprised of unreinforced concrete; concrete building materials, namely, concrete blocks and concrete armor units to protect coastal and hydraulic structures and shorelines; bitumen, bitumen asphalt; and non-metallic transportable buildings

Building construction, building repair and installation of coastal and hydraulic structures and shorelines