6 ventilating ducts of metal; metal hinges; latches of metal; all purpose metal straps; metal strapping or tie downs; metal clamps; spacer brackets of metal; brackets of metal for building; metal boxes; Metal roof vents for heating, cooling, ventilation in residential and commercial buildings; metal vanes for ductwork; rails of metal; metal support rods for air handling, air conditioning, heating, and ventilating systems for metal and fiberglass duct systems, pipes, wiring trays, building components; threaded metal rods; Wire rope fittings of metal, namely, studs; metal locks for cables; metal cotter pins; metal fasteners, namely, metal bolts, nails, screws, pins, rivets, metal insulation fasteners, sheet metal fasteners, duct fasteners, adhesive metal fasteners, impact fasteners, point pins, spotter pins, rib pins, target pins; Buckles of common metal, namely, hardware for suspending ducts; nuts of metal; bolts of metal; metal screws; metal hangers for suspending and hanging ducts; metal dock cleats; screw rings of metal; metal flanges; metal chains; metal gaskets for filling gaps and creating seals in the field of air handling equipment, air conditioning, heating, ventilating, insulation fastening systems; connectors for metal ducts, namely, metal expansion joints for air handling, air conditioning, heating, and ventilating systems and for metal and fiberglass duct systems; wire cable end fixings for securing ducts, pipes, and air handling equipment namely, metal eye bolts, metal hooks, metal clamps, and metal locks; accessories for hand tool sheet metal shrinking and stretching device, namely, metal screws