| 摘要 |
<p>Methods and devices for joining two or more panel together are provided. The methods allow joining of panels of material such as glass fiber board and are particularly useful for forming ducts or tubes. Fasteners (400) provided have two planar members (402a, 402b) joined together. The planar members have protrusions (404) that are integral to the planar members and are intended to at least partially protrude into the panels joined by the fasteners.</p> |
