| 摘要 |
PROBLEM TO BE SOLVED: To provide a multilayered resin pipe capable of revealing lightness, high rigidity, low heat conductivity, and a low linear expansion coefficient while using a recyclable resin raw material. SOLUTION: This multilayered resin pipe 1 has the outermost layer 12, the innermost layer 11, and an intermediate layer 13. At least one layer of the intermediate layer 13 is formed of an unfoaming resin including the unfoaming resin and a recyclable resin. At least one layer of the layer except for the intermediate layer 13 is formed on a foaming resin. The recyclable resin is not used in the outermost layer 12, and the innermost layer 11.
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