… Hard rubber (for example, ebonite) in all forms, including waste and scrap; articles of hard rubber. …
Explanatory notes
… 40.17 ‑ Hard rubber (for example, ebonite) in all forms, including waste and scrap; articles of hard rubber. Hard … also covers all hard rubber articles not specified or included in other Chapters. It includes vats, troughs, articles of tubing, knife handles …