| 摘要 |
According to the present invention a method of forming an attachment end formation (11) on a tubular body (10) with a tube wall comprises forming at leastone elongate aperture (14, 15) in the tube wall at an end of the tubular body. The at least one elongate aperture extends generally along part of the length of the tubular body (10). The tube wall is also flattened at said end of the tubular body prior to or after forming the at least one elongate aperture, thereby forming two spaced apart opposing generally flat face sections (16, 17) with the at least one elongate aperture (14, 15) extending between the face sections. The invention also relates to tubular bodies with such attachment end formations. |
