Elbows of metal for pipes including those from alloy steel and titanium; Mechanical fastening elements of metal; Metal fasteners, namely, bolts, nails, rivets, screws; Metal pipes and metal fittings therefor; Metal screws; Pipework of metal including those from alloy steel and titanium; Rods of metal for brazing and welding including those from alloy steel and titanium; Sash fasteners of metal for windows; Tool and tool accessory trays made of metal sold empty and parts and fittings therefor