chapter 51 Wool, fine or coarse animal hair; horsehair yarn and woven fabric
1.- Throughout the Nomenclature:
(a) “Wool” means the natural fibre grown by sheep or lambs;
(b) “Fine animal hair” means the hair of alpaca, llama, vicuna, camel (including dromedary), yak, Angora, Tibetan, Kashmir or similar goats (but not common goats), rabbit (including Angora rabbit), hare, beaver, nutria or musk-rat;
(c) “Coarse animal hair” means the hair of animals not mentioned above, excluding brush-making hair and bristles (heading 05.02) and horsehair (heading 05.11).
1.- In this Chapter, the word “silk” includes noil silk and other silk waste.