Balustrades of metal; Bolts of metal; Casement windows of metal; Fences of metal; Gates of metal; Gratings of metal; Hardware, namely, metal brackets for general use; Hooks of metal for clothes rails; Ladders of metal; Latch bars of metal; Latticework of metal; Metal guardrails; Metal hardware, namely, springs; Metal refuse bins for commercial use; Palings of metal; Stair treads of metal; Staircases of metal; Step stools of metal; Tubes of metal; Wall plugs of metal; Works of art of common metal