29th Mar, 2012 to 31st Mar, 2012 at China World Trade Centre, Beijing, China Yarn Expo Spring 2012 will be held at China World Trade Centre from March 29 - 31, 2012. Exhibit product range includes: Fibres: Natural fibres (cotton, wool, silk & flax/ramie), Man-made fibres (regenerated & synthetic), Specialty fibres. Yarns: Natural & blend yarns (cotton, wool, silk & linen/ramie), Man-made & blend yarns (regenerated & synthetic), Elastic yarns, Fancy yarns & Specialty yarns.