| 摘要 |
<p>An apparatus (50) for and method of manufacturing helically wound tubular structures (116) includes a rotating faceplate (74) upon which are mounted a plurality of diameter defining rollers (78) which, in operation, cause a strip material (80) to be plastically deformed into a helical winding which may be lain down in abutting or self-overlapping relationship to form said tubular structure (116).</p> |
