5510: Yarn (o/t sewg thread) of arti staple fibre, nt put up for retail sal

551011: Yarn, >/=85% of artificial staple fibres, single, not put up 551012: Yarn, >/=85% of artificial staple fibres, multiple, not put up, nes 551020: Yarn of artificl staple fib mixd w wool/fine animl hair, not put up, 551030: Yarn of artificial staple fibres mixed with cotton, not put up, nes 551090: Yarn of artificial staple fibres, not put up, nes 5510: Yarn (o/t sewg thread) of arti staple fibre, nt put up for retail sal