6 Prefabricated steel structures, namely, metal buildings and parts thereof; Modular metallic buildings comprised of shipping containers; Metallic transportable buildings comprised of shipping containers; Prefabricated buildings and parts thereof, made primarily of metal, for use as portable classrooms, medical and dental offices, surgical centers, temporary shelters, living quarters, pet kenneling, animal control centers, business offices, grow centers, power and internet connectivity locations, water purification locations, network operation centers, and disaster relief centers