Common metals and their alloys including stainless steel; Metal hardware, namely, nuts; Metal hardware, namely, springs; Stainless steel pipes; Stainless steel strainers used in the commercial preparation of foods, beverages, dairy products, pharmaceuticals and drugs; Stainless steels; Tool and tool accessory boxes made of metal sold empty and parts and fittings therefor; Tubes of stainless steel; Works of art of common metal