[ Common metals, unwrought or semi-wrought; Steel pipes; fittings of metal for building, namely, metal door and window fittings; Rails of metal; Pulleys of metal, other than for machines; Ironmongery, namely, springs, nuts, and washers; metal sash pulleys; Pot hooks of metal; Locks of metal, other than electric; ] Furniture casters of metal; Bed casters of metal