sectional metallic building units and couplings, fittings, and connections therefor, adapted to serve as framing and supporting members for temporary and permanent construction of building and other structures, including racks, scaffolding, ladders, rails, supports and the like

electrical fittings; namely, electrical switch plates, pipe and electrical conduit clamps, cable supports and brackets, wire and cable raceways, hanger boxes, bus bars, bus bar clamps and supports, and metal channels; all for use in electrical installations

Electrical Fittings, Electrical Switch Plates, Pipe and Electrical Conduit Clamps, Cable Supports and Brackets, Wire and Cable Raceways, Hanger Boxes, Bus Bars, Bus Bar Clamps and Supports, and Metal Channels; All for Use in Electrical Installations