Common metal drawer pulls; Common metal pulls; Common metals and their alloys including stainless steel; Copper alloys; Copper pipes; Copper wire mesh; Copper, unwrought or semi-wrought; Door knobs of common metal; Ducts of metal for air-conditioning installations; Metal hardware, namely, nuts; Metal hardware, namely, springs; Metal hardware, namely, washers; Metal hinges; Metal HVAC ducts; Metal pipe couplings and joints; Metal threaded fasteners; Metal tubing; Metallic flanges; Pipe couplin...