7206: Iron and non-alloy steel in ingots or other primary forms, nes

720610: Ingots, iron or non-alloy steel, of a purity of less than 99.94% iron 720690: Primary forms, iron/non-alloy steel, nes, of a purity < 99.94% iron 7206: Iron and non-alloy steel in ingots or other primary forms, nes