Retaining devices of metal, namely, brackets of metal for furniture; metal wall brackets for shelving, namely, metal shelf brackets; metal hardware, namely, metal brackets for general use; metal structures in the nature of metal shelter structures and portable metal structures with flexible covers for agricultural, commercial or industrial storage; metal fixings, namely, metal hooks, metal clamps, wire rope fittings of metal in the nature of sockets and threaded metal rods for use in attachin...