GS0061: Steel frames for building; Prefabricated metal buildings; Prefabricated ready-to-assemble houses of metal; Prefabricated buildings made substantially of metal; Construction elements made of metal, namely, fabricated metal components for building foundations; Modular metal structures with flexible covers for agricultural, commercial or industrial storage; Pre-fabricated metal building assembly kits; Metal roof trusses
GS0371: Construction of steel structures; Construction, maintenance and repair of transportable and prefabricated buildings; Construction of modular buildings; Construction project management services in the field of prefabricated buildings, including pole barns, modular buildings, garages, workshops, and other storage buildings