Section 15 BASE METALS AND ARTICLES OF BASE METAL 73 ARTICLES OF IRON OR STEEL 73 26 OTHER ARTICLES OF IRON OR STEEL. 73 26 11 GRINDING BALLS & SIM. ART.FOR MILLS,FORGED/STAMPED,BUT NOT FURTHER WORKED Commodity Code Description 73 26 11 00 GRINDING BALLS & SIM. ART.FOR MILLS,FORGED/STAMPED,BUT NOT FURTHER WORKED