Subheading 551110: Yarn; (not Sewing Thread), of Synthetic Staple Fibres, Containing … etc.
Subheading 551120: Yarn; (not Sewing Thread), of Synthetic Staple Fibres, Containing … etc.
Subheading 551130: Yarn; (not Sewing Thread), of Artificial Staple Fibres, Put up for … etc.