Lintels of metal; building and construction materials and elements of metal, namely, safety scaffoldings, railings, fences; structures, namely, safety scaffoldings, railings, fences and transportable buildings of metal; metal hardware, namely, brackets for building; common metals, unwrought or semi-wrought; doors, gates, windows and window coverings of metal; roofing sheets of metal; metal roofing hips; metallic gutters; roof coverings of metal; roofing panels of metal; roof components of metal; safety scaffolding of metal; metal gates; railing holders of metal; metal railings; parapet supports of metal; fences of metal; Building construction services, construction services, namely, project management and demolition of houses and buildings; roofing installation; resurfacing of roofs; roofing services; installation of security systems; installation of security fencing; installation of security and safety equipment, namely, safety scaffoldings; maintenance and repair of security installations; advisory services relating to the installation of security and safety equipment
