| 摘要 |
The pipe (100) has a case section (150) to surround a central recess (140), and a connection section (110) arranged inside conventional pipes. The connection section has corrugated walls (111, 113, 115, 117) comprising a fixed edge (123) coupled to the case section, and an exterior edge (125) extended from the case section. The walls are positioned around the recess. A flexible wedge piece is attached between the adjacent walls and bent to permit displacement of the walls with low flexion. The piece is formed of a metal layer and a layer of fiber material impregnated with polymer material. |
