14 STEEL PLATES AND SHEETS, IRON AND STEEL, METAL BARS AND BILLETS, ALLOY STEEL, TOOL STEEL, STRIP STEEL, SPRING STEEL, DRILL STEEL, MACHINERY STEEL, SCREW STEEL, BABBITT METAL, SOLDER, STAINLESS STEEL, CASTINGS OF MALLEABLE IRON, GRAY IRON, AND STAINLESS STEEL, FORGINGS OF CARBON STEEL, ALLOY STEEL, AND STAINLESS STEEL, AND COLD ROLLED STEEL