Alloys of common metal; Casting alloys; Fences of metal; Furniture casters of metal; Gratings of metal; Joists of iron or steel; Mechanical fastening elements of metal; Metal beam clamps; Metal furniture casters; Metal hose fittings; Metal molds for forming cement posts, wall panels and other building materials for building; Metal railings; Pipe tubes of metal; Staircases of metal; Window stops of metal