6
Common metals and their alloys; metal building materials; transportable buildings of metal; materials of metal for railway tracks; non-electric cables and wires of common metal; ironmongery, small items of metal hardware; pipes and tubes of metal; safes; goods of common metal not included in other classes; ores.
linear ceiling systems and parts therefor composed of some or all of, elongated metal panels, runners, moldings, support members, splicers, splines, acoustical panels, clips, air diffusers, lighting fixtures, and insulation and coating materials sold as a unit
19
Building materials (non-metallic); non-metallic rigid pipes for building; asphalt, pitch and bitumen; non-metallic transportable buildings; monuments, not of metal.
acoustical suspension systems and parts therefor composed of some or all of acoustical panels, drywall panels, runners, support tees, hangers, splines, clips, support members, moldings, lighting fixtures, and insulation and coating materials; access floor systems and parts therefor composed of some or all of [ floor panels, pedestals, pedestal heads, pads, stringers, runners, tile, carpet, edge trim, ramps, ] steps, hand railing, closure plates, [ plenum dividers, molding, air flow panels, dampers, air grilles, grommet and service outlets, cable cut-outs, and insulation and coating materials; ] wall systems and parts therefor composed of some or all of panels, panel connectors, ceiling trim, slotted standards, bases, corners, door frames and doors, gaskets, studs, clips, splines, and insulation and coating materials sold as a unit