Common metal pulls; Crash barriers of metal; Door knobs of common metal; Ducts of metal for ventilating installations; Fixed metal docks; Guard rails of metal; Hangers in the nature of metal hooks used to hang a purse or bag from a table; Iron slabs; Metal folding doors; Metal mail boxes; Poles of metal; Roof flashing of metal; Tool boxes of metal; Traps for wild animals; Tubes of stainless steel