19 aluminum building components, namely, connectors, adapters, splice plates, joist hangers, truss dollies, stacker plates, hinges, mounts, sleeve blocks, z-arms, axles, wheel tracks, battery boxes, electrical enclosures, decorative panels, hand rails, frame rails, stair stringers, stair treads; steel building components, namely, beams, columns, trusses, connectors, adapters, splice plates, joist hangers, truss dollies, stacker plates, hinges, mounts, sleeve blocks, z-arms, axles, wheel tracks, battery boxes, electrical enclosures, decorative panels, hand rails, frame rails, stair stringers and stair treads