7228: Bar, rod, angle etc nes, hollow steel drill bars

722810: Bar/rod of high speed steel not in coils 722820: Bar/rod of silico-manganese steel not in coils 722830: Bar/rod, alloy steel nes,nfw hot rolled/drawn/extrude 722840: Bar/rod nes, alloy steel nes, nfw forged 722850: Bar/rod nes, alloy steel nes, nfw cold formed/finishe 722860: Bar/rod, alloy steel nes 722870: Angles, shapes and sections, alloy steel, nes 722880: Hollow drill bars and rods of alloy/non-alloy steel 7228: Bar, rod, angle etc nes, hollow steel drill bars