5510: Yarn (not sewing), artificial staple fibre, not retai

551011: Yarn >85% artificial staple fibres, single, not retai 551012: Yarn >85% artif staple fibres, multiple,not retail,ne 551020: Yarn of artif staple fibres & wool or hair, not retai 551030: Yarn of artificial staple fibres & cotton, not retail 551090: Yarn of artificial staple fibres, not retail, nes 5510: Yarn (not sewing), artificial staple fibre, not retai