U.S. note 16(c)(xi)
(xi) Derivative steel articles: 8427.10.40 8427.10.80 8427.20.40 8427.20.80 8427.90.00 8429.11.00 8429.19.00 8429.20.00 8429.30.00 8429.40.00 8429.51.10 8429.51.50 8429.52.10 8429.52.50 8429.59.10 8429.59.50 8431.20.00 8431.42.00 8431.49.90 8701.10.01 8701.30.50 8701.91.50 8701.92.50 8701.93.50 8701.94.50 8701.95.50 8705.10.00 8705.20.00