Brass, unwrought or semi-wrought; Cast iron; Cast steel; Castings, foils, powder, and rolled, drawn or extruded semi-finished articles of copper or its alloys; Junctions of metal for pipes including those from alloy steel and titanium; Metal castings; Metal hardware, namely, washers; Metal pipe fittings; Metal water pipes; Valves of metal other than parts of machines including those from alloy steel and titanium