... > SECTION XV - BASE METALS AND ARTICLES OF BASE METAL > CHAPTER 72 - IRON AND STEEL > IV. OTHER ALLOY STEEL; HOLLOW DRILL BARS AND RODS, OF ALLOY OR NON-ALLOY STEEL > 7228 Other bars and rods of other alloy steel; angles, shapes and sections, of other alloy steel; hollow drill bars and rods, of alloy or non-alloy steel > Other bars and rods, not further worked than hot-rolled, hot-drawn or extruded > Containing by weight 0,9 % or more but not more than 1,15 % of carbon, 0,5 % or more but not more than 2 % of chromium and, if present, not more than 0,5 % of molybdenum > Of circular cross-section of a diameter of 80 mm or more