modular portable buildings of metal; modular prefabricated steel framing; modular portable building structures (metal); prefabricated metal relocatable buildings; metal relocatable buildings; transportable metallic buildings; metal modular building units; transportable metal structures; transportable structures of metal; modular units of metal for constructing prefabricated buildings; structures of metal for use as prefabricated building foundations; outdoor metal-framed transportable buildings; modular portable building units of metal; modular units of metal for constructing relocatable buildings; portable cabins of metal

house building; building of houses; construction of buildings; building and construction services; erection of pre-fabricated buildings; building services; factory construction; construction engineering; building of offices