| 摘要 |
PURPOSE: A coupling structure of resin pipes is provided to prevent degradation of water-tightness by securing rigidity of connection part of resin conduits against an impact load. CONSTITUTION: A coupling structure of resin pipes includes resin pipes(100) and a hollow connecting socket(200). The resin pipe has grooves(104) and projections(102) formed successively on the outside surface. Protrusions(206) are formed on both ends of the connecting socket and fitted into the grooves of the resin pipes.
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