Bar hangers and parts and fittings therefor made of metal for electrical fixtures/housing; Brackets of metal for furniture; Construction elements made of metal, namely, supports; Ducts of metal for air-conditioning installations; Ducts of metal for ventilating and air-conditioning installations; Hardware mounting system comprised of metal brackets for bath accessories and decorative hooks; Hardware, namely, metal brackets for general use; Hinges of metal; Metal air conditioning ducts; Metal c...