Judgment of the Court (Fourth Chamber) of 4 February 2021.#eurocylinder systems AG v Hauptzollamt Hamburg.#Request for a preliminary ruling from the Finanzgericht Hamburg.#Reference for a preliminary ruling – Common commercial policy – Anti-dumping duties – Regulation (EC) No 384/96 – Article 3(9) – Threat of material injury – Factors – Article 9(4) – Regulation (EC) No 926/2009 – Imports of certain seamless pipes and tubes of iron or steel originating in the People’s Republic of China