Metal building materials for use in roofing, namely, steel rolled joists, steel tie rods, steel tie wire, steel corner brackets, steel portal structures, doors; ironmongery in the nature of small items of metal hardware, namely, metal bolts and metal screws; metal roofing; roof lights, namely, skylights and lanterns of metal; metal skylights; metal skylight frames; metal skylight windows; conservatories structures of metal; metal windows; metal window frames; metal fittings for windows; metal...