6 Metal façade panels for construction purposes consisting of façade panels and components for heating, cooling, and ventilating buildings, namely, ducts and pipes of metal for central heating, cooling, and ventilating installations, sold as a unit; Metal retrofit façade panels for construction purposes consisting of retrofit façade panels and components for heating, cooling, and ventilating buildings, namely, ducts and pipes of metal for central heating, cooling, and ventilating installations, sold as a unit; Metal façade panels for construction purposes consisting of façade panels and components, namely, structural anchors particularly metal plates, metal hooks, metal rails, metal bolts, or metal brackets, fire and smoke baffles, metal windows, air re-circulation fans, ventilation ductwork, and metal piping for heating and cooling, sold as a unit; Building materials, namely, metal prefabricated façade panels; Building materials, namely, metal prefabricated façade panels comprised of metal façade panels and components for heating, cooling, and ventilating buildings, namely, ducts and pipes of metal for central heating, cooling, and ventilating installations, sold as a unit; Building materials, namely, metal prefabricated façade panels comprised of metal façade panels and components, namely, structural anchors particularly metal plates, metal hooks, metal rails, metal bolts, or metal brackets, fire and smoke baffles, metal windows, air-recirculation fans, ventilation ductwork, and metal piping for heating and cooling, sold as a unit