6 Building materials in the nature of metal goods for use in building construction for anchoring, fastening, assembling and reinforcing, namely, metal castings, metal anchors, metal bolts, metal strapping and tie downs, metal screws, fittings of metal for buildings, steel frames for building, metal spacer brackets, metal shelf brackets, metal mounting brackets, metal cantilevered brackets, metal locking mechanisms, metal rods, metal fasteners, namely, nails, rivets, and screws, anchorage plates, plugs of metal, metal bolts; metal nuts and washers, metal couplings, metal wall spacer brackets, metal pins, namely, cotter pins and reinforcing metal pins for formwork, metal reinforcing materials for concrete, metal bars, metal bands for tying-up purposes, metal cable ties, steel plates and sheets, all-purpose metal straps, metal corner guards, metal scaffolding, metal curtain walls, metal flanges and metal end caps for pipes, rods and rails; metal mounting rails; accessories for metal mounting rails, namely, metal cantilevers, bolts, plates, rods, nuts, washers, rail fastenings; metal anchoring devices, namely, anchor rails, sandwich panel anchors, anchor lugs, metal fastening anchors for masonry, anchor channels, anchor bushings, anchor flanges