| 摘要 |
<p>PROBLEM TO BE SOLVED: To connect the fellow composite pipes consisting of forming of a synthetic resin pipe in a metal pipe, without protruding a joint from a pipe inner surface, and without generating separation for the like of the synthetic resin pipe when a pipe end is heated, so that whether pipe end connection is good or bad can be easily confirmed from the outside of a connection part. SOLUTION: In a joint structure of a composite pipe 6 constituted by forming a synthetic resin pipe 9 in a metal pipe 8, an end of the synthetic resin pipe 9 protruded from an end of the metal pipe 8 is mutually butt connected, and a coating band 10 is mounted in a pipe end outer peripheral surface of the composite pipe 6 thus connected.</p> |
