| 摘要 |
<p>IMPROVED EXPANDER TOOL An improved expander tool for trueing thin walled tubing, such as thin walled tubing of the type utilized in automobile tail pipes, mufflers and the like, the tool including improved means for applying expansion forces to expansion elements and other interrelated components incorporated in the tool whereby the strength of the tool is increased and at the same time the cost of manufacture and assembly thereof is reduced.</p> |
