| 摘要 |
PURPOSE: A synthetic resin profile pipe is provided to secure uniform stress against an external force and high strength without a separate reinforcing material. CONSTITUTION: A synthetic resin profile pipe comprises a synthetic resin tube(1) which is spirally coiled, a joint member(2) which is formed by extruding resin in a space between the spiral portions of the tube and secures the tube in shape, and a profile(20) which has a hollow circular shape. The profile comprises a longitudinal partition wall(21) in the center and upper and lower ribs(22,23) on the top and bottom thereof.
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