6 Metal trusses, namely, square truss comprised of straight segments, corner junctions, cross and T-junctions, circular arcs, and constructors; triangular metal truss comprised of straight segments, corner junctions, cross and T-junctions, circular arcs, and constructors; mini-triangular metal truss comprised of straight segments, corner junctions, and circular arcs; and I-beam metal truss comprised of straight segments, corner junctions, cross and T-junctions, circular arcs, and constructors; straight metal tube segments of metal trusses; truss accessories, namely, metal clamps, metal truss couplers, metal base plates, metal spacers, and metal hinges; truss accessories, namely, metal support bars for supporting truss structures, metal truss outriggers, metal truss stabilizers, and metal ground support sleeves for holding and stabilizing metal trusses; truss accessories, namely, metal mounts for flat panel televisions; metal truss accessories, namely, portable metal stages for musical performance, stairs, and guard rails; metal truss accessories, namely, truss delay towers for supporting metal trusses, all of the foregoing for use in the construction and assembly of decking for light, sound, image and stage installations for artistic, theatrical, and musical productions