| 摘要 |
<p>The tube (1) comprises a hollow structure made from a weave, knit or similar assembly of at least two different yarns (10, 11, 12), at least one of which is of a synthetic material with a melting point below the melting or deterioration point of the other yarns and is at least partially melted. The tube can have, for example, yarns of at least two different synthetic materials with different melting points, and at least one of the yarns can be made from a mixture of different fibres.</p> |
