Case T-228/17: Judgment of the General Court of 19 September 2019 — Zhejiang Jndia Pipeline Industry v Commission (Dumping — Imports of certain stainless steel tube and pipe butt-welding fittings, whether or not finished, originating in China and Taiwan — Imposition of definitive anti-dumping duties — Normal value — Adjustments — Manifest error of assessment — Obligation to state reasons)