Anti dumping duty on seamless pipes imposed, with duty calculated as margin over landed import value. Imposition of anti dumping duty on seamless tubes and pipes under headings 7304.10, 7304.29 and 7304.39 originating in or exported from Russia, Romania, Austria and the Czech Republic. Duty applies to listed categories, grades and exporters and is calculated as the difference between specified per metric ton amounts in the annexed table and the landed value of imports. Legal authority is section 9A of the Customs Tariff Act, 1975 read with rules 18 and 20 of the 1995 Rules; duty effective from the provisional duty imposition date.