HTS code 9902.15.07 covers "Cold-formed profiles of nickel alloys, having the symmetrical cross section of an isosceles triangle, with a total width between 2.9 mm and 3.1 mm and a height between 3.8 mm and 4.3 mm (provided for in subheading 7505.12.50)" under the US Harmonized Tariff Schedule. This is the official duty rate charged by US Customs when this product is imported into the United States, sourced directly from the U.S. International Trade Commission and refreshed daily.