Explanatory notes
… heading 05.11 ), whether whole or in pieces, and whether or not edible, fresh, chilled, frozen, salted, in brine, dried … includes : (1) Rennet bags (calf, kid, etc.), whether or not cut or dried; these are used for the extraction of … subsequently hardened with a solution of formaldehyde and phenols ( heading 39.17 ) and “artificial” guts made by …