Bars for metal railings; Ducts of metal for ventilating and air-conditioning installations; Frames of metal for building; Metal bolts; Metal guard rails; Metal holders for signboards; Metal poles; Metal hardware, namely, pulleys; Palings of metal; Pulleys of metal, other than for machines; Runners of metal for sliding doors; Sash pulleys of metal; Trellis of metal; Window pulleys of metal; Bicycle locks; Metal locks