7201: Pig iron and spiegeleisen in pigs, blocks or other primary forms

720110: Pig iron, non-alloy, containg by wght </=0.5% phosphorus in primary f 720120: Pig iron, non-alloy, contg by wght >0.5% of phosphorus in primary fo 720150: Alloy Pig Iron and Spiegeleisen, In Pigs 7201: Pig iron and spiegeleisen in pigs, blocks or other primary forms