SECTION XI - TEXTILES AND TEXTILE ARTICLES > CHAPTER 54 - MAN-MADE FILAMENTS; STRIP AND THE LIKE OF MAN-MADE TEXTILE MATERIALS > 5402 Synthetic filament yarn (other than sewing thread), not put up for retail sale, including synthetic monofilament of less than 67 decitex > Other yarn, single, with a twist exceeding 50 turns per metre > Of polyesters