Building components, namely, beams, columns and trusses for roofs, walls and/or floors, metal scaffoldings including metal scaffoldings for use in movie production, theatres and tradeshows, metal scaffoldings in the nature of pre-fabricated metal blocks, pre-fabricated metal architectural columns, metal railings, aluminum frames for building, metal pillars for building, metal reinforcement materials for building, and parts and fittings for the foregoing goods; Trusses for building, structural joint connectors, splice plates, joist hangers, stacker plates, hinges, electrical enclosures, decorative wall panels, decorative ceiling panels, hand rails, frame rails, stair stringers in the nature of inclined beams for creating staircases and connecting staircases to structures and stair treads