… Silk yarn (other than yarn spun from silk waste) not put up for retail sale. …
Explanatory notes
… 50.04 ‑ Silk yarn (other than yarn spun from silk waste) not put up for retail sale. This heading applies to thrown silk, … threads of heading 50.02. They are, however, excluded if put up for retail sale ( heading 50.06 ) or if within the … be discharged or finished. The heading excludes imitation catgut of silk, of heading 56.04 . …