| 摘要 |
<p>A bellows expansion joint to be located between a pair of axially aligned pipes (1), which comprises an inner bellows (5) located within a cover pipe (10), the ends of which cover pipe are to be located adjacent the ends of the pipes being connected, and further comprising an outer bellows (15) located within an outer protection cover pipe (17), the ends of which outer cover pipe are to be located adjacent the ends of the pipes (1) being connected, characterised in that the outer bellows (15) is made of metallic material.</p> |
