| 摘要 |
It is possible to continuously obtain, through simple steps, a plate which can gain sufficient strength, which is very lightweight and easy to handle, and which has the optimal heat insulating effect. A plate 1 is manufactured by: guiding a glass fiber containing member 5 into a space formed by an outer mold 11 and a center mold 12; injecting a resin 4 into the space formed by the outer mold 11 and the center mold 12; integrating the resin 4 with the glass fiber containing member 5 to form a hollow panel 2; and injecting a foaming material into a hollow part formed in the hollow panel 2, and causing the foaming material to foam and integrate with the hollow panel 2.
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