Classification of a pipe transportation device: an article of aluminium or a container?

Let's take a look at the second judgement issued by the Court of Justice of the European Union (CJEU) earlier this year on the tariff classification of goods (the first one was on classification of inflatable couches). This case is about a pipe transportation device: Should it be classified as an article of aluminium or a container? Accordingly, the import duty rate is 6% or 0%. The CJEU also clarified what a ‘container’ means for tariff classification purposes.