The description of the item 540249001015 of Turkey HScode: Synthetic filament yarn (other than sewing thread), not put up for retail sale, including synthetic monofilament of less than 67 decitex: Other yarn, single, untwisted or with a twist not exceeding 50 turns per metre: Other: Not exceeding 6, 7 tex: Synthetic filament yarn, single, containing by weight 85 % or more of acrylonitrile, in the form of a wick containing 1 000 continuous filaments or more but not more than 25 000 continuous filaments, of a weight per metre of 0, 12 g or more but not more than 3, 75 g and of a length of 100 m or more, for the manufacture of carbon-fibre yarn