52 55.06 55.06-10 , 90 Cotton yarn , put up for retail sale 53 55.07 55.07-10 , 90 Cotton gauze 54 56.04 Man-made fibres ( discontinuous or waste ), B carded , combed or otherwise prepared for spinning: B. Regenerated textile fibres : 56.04-21 , 23 , 28 Regenerated textile fibres ( discontinuous or waste ), carded or combed 55 56.04 Man-made fibres ( discontinuous or waste), A carded , combed or otherwise prepared for spinning: A. Synthetic textile fibres : 56.04-11 , 13 , 15 , 16 , 17 , Synthetic textile fibres ( discontinuous or 18 waste ), carded or combed 56 56.06 Yarn of man-made fibres ( discontinuous or