Metal elbows for pipes; Ducts of metal for ventilating installations; Metal hoses for plumbing use; Doorplates of metal; Pipework of metal; Fittings of metal for pipes; Fittings of metal for flexible pipes; Fireplace mantles of metal; Metal cable ties; Aluminum alloy; Metal vent cover for HVAC ducts; Metal fasteners, namely, bolts, nails, rivets, screws