prefabricated houses [ready-to-assemble] of metal; prefabricated houses [kits] of metal; pre-fabricated houses of metal; pre-fabricated buildings made substantially of metal; mobile homes being manufactured housing of metal; prefabricated modules of metal; mobile homes [transportable buildings] of metal

prefabricated houses, not of metal; prefabricated homes, not of metal; prefabricated houses [ready-to-assemble], not of metal; prefabricated non-metal buildings; pre-fabricated homes, not of metal; prefabricated modules, not of metal; modular non-metal homes