Building materials and building components of metal, namely, bearing structures, balance beams and balance beam systems of metal as well as their components, stands, clamps of metal and quick connectors; buildings and transportable buildings of metal for trade fair construction and event technology; ironmongery and small items of metal hardware, namely, metal brackets, washers, hose clamps, connections pins, metal pipe connectors, aluminum truss for stage set up, steel safety ropes, hinges, m...