Metal cable trays used for electrical and data cable installations of any kind; Metal profiles for supporting cable trays on and in walls, ceiling and other surfaces; Cable management accessories, namely, metal clamps, brackets of metal for building, metal covers for metal cable trays, metal clips for general use, metal fasteners, in particular, nuts and bolts, metal hanger rods for metal cable trays, end plates in the nature of a metal closure for metal cable trays, metal binding barrier str...