| 摘要 |
<p>A heat-shrinkable hollow articles having one open end affording access to an internal cavity, the wall defining the internal cavity being shaped to provide stop means projecting into the cavity at a position or positions between the open end and the end of the cavity remote from the open end, whereby after heat-shrinking of the article onto a substrate a gap is left between the subtract and the end of the cavity remote from said open end.</p> |
