Explanatory notes
… Part (IV) (B). Because of their special properties (better surface finish, better aptitude to cold‑forming, stricter … and if their surface has been pickled to render them suitable for tin‑plating, varnishing or printing, they may … be described as “black plate”, even when coiled. ° ° ° Subheading Explanatory Note. Subheadings 7209.15, 7209.16, …