7228: Bars & rods, o al/s; angle etc o al/s; hollow drill bars & rod of al/

722810: Bars and rods of high speed steel, nes 722820: Bars and rods of silico-manganese steel nes 722830: Bars & rods, alloy steel, o/t stainless nfw thn hot rolld/drawn/extru 722840: Bars & rods, as, o/t stainless, not further worked than forged 722850: Bars & rods, as, o/t stainless, not further workd than cold formed/fi 722860: Bars & rods, as, o/t stainless, nes 722870: Angles, shapes and sections, as, o/t stainless, nes 722880: Bars & rods, hollow drill, alloy or nonalloy steel 7228: Bars & rods, o al/s; angle etc o al/s; hollow drill bars & rod of al/