… 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 … ) (see Parts (I) (B) (2) and (3) of the General Explanatory Note to Section XI). The yarns of this heading differ from … many varieties, including : (1) Single yarns (sometimes known as poils ), obtained by twisting a single raw silk …