| 摘要 |
<p>This invention describes a cylindrical or truncated conical tube used as core for winding thread or yarn to be used in spinning, winding, throwing or texturising or other operations that involve a winding movement; this tube (1) has at one end (4, 5) a plurality of cuts or notches (c, d) that cover at least part of its surface, which are meant to increase the elasticity of this end, while maintaining the tube resistance capacity.</p> |
