Bolts of metal; Crampons of metal; Fences of metal; Fittings of metal for furniture; Locks of metal, other than electric; Metal cages for wild animals; Metal hardware, namely, carabiners of metal; Metal hooks; Pipes and tubes of metal; Poles of metal; Posts of metal; Signboards of metal; Step stools of metal; Traps for wild animals; Tree protectors of metal; Wind vanes of metal; Wire rope; Works of art of common metal