Explanatory notes
… substance (e.g., unvulcanised rubber, glue, plastics, tar, gelatin), or (2) Without an added binding substance at a … of the properties of natural cork, and in particular is an excellent heat‑ or sound‑insulating material. In many cases, … as those referred to under heading 45.03 but, whereas it is rarely used for making stoppers, it is used more often than …