| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable a belt-like mark for detecting twisting to be easily provided in a corrugate tube.SOLUTION: A corrugate tube 20 includes: an inner peripheral side corrugate tube 30 where narrow annular parts 32 and thick annular parts 34 are formed into tube shapes which alternately continue and an inner peripheral side slit 36 is formed along an extension direction of the inner peripheral side corrugate tube 30; and an outer peripheral side corrugate tube 40 where narrow annular parts 42 and thick annular parts 44 are formed into tube shapes which alternately continue and an outer peripheral side slit 46 is formed along an extension direction of the outer peripheral side corrugate tube 40, the outer peripheral side corrugate tube 40 which covers the inner peripheral side slit 36 and may fit on the inner peripheral side corrugate tube 30 while exposing a part of the inner peripheral side corrugate tube 30 to an exterior part through the outer peripheral side slit 46. An outer peripheral surface 40F of the outer peripheral side corrugate tube 40 takes on a color different from that of an outer peripheral surface 30F of the inner peripheral side corrugate tube 30.</p> |
