| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the precision when bending the innermost pipe end to a desired point, in a multiple pipe with a bend at its end. <P>SOLUTION: In a multiple pipe provided with at least two or more inner pipes, the inner pipe is inserted through the outer pipe in the manner that the inner pipe can axially slide and its leading end can protrude from the end of the outer pipe. The end part of at least one inner pipe is bent, and the bent is made of a superelastic alloy. <P>COPYRIGHT: (C)2008,JPO&INPIT |
