Section 15 BASE METALS AND ARTICLES OF BASE METAL 72 IRON AND STEEL 72 13 BARS AND RODS, HOT-ROLLED, IN IRREGULARLY WOUND COILS, OF IRON OR NON- 72 13 91 OTH. BARS & RODS, HOT ROLLED,...OF CIR. CROSS-SECT. <14MM DIAM., OF IRON Commodity Code Description 72 13 91 10 OTH. BARS & RODS, HOT ROLLED,...OF CIR. CROSS-SECT. <14MM DIAM., OF IRON 72 13 91 90 OTH.BARS&RODS,HOT ROLLED...OF CIR.CROSS SECT.<14MM DIAM,OF NON-ALLOY STEEL