… Glass fibres (including glass wool) and articles thereof (for example, yarn, rovings, woven fabrics). …
Explanatory notes
… 70.19 - Glass fibres (including glass wool) and articles thereof (for example, yarn, rovings, woven fabrics) … by reason of their nature. Glass fibres have the following properties : they are less flexible than vegetable or animal … is heated by the flame from a furnace, but, at the same time it is drawn into filaments by means of centrifugal …