| 摘要 |
PROBLEM TO BE SOLVED: To obtain a heat insulation box formed by attaching a condensation pipe to the inner surface of an exterior plate using an aluminum tape and filling the space between the exterior plate and an inner box with a foamed heat insulation material in which the air remaining in the space between the exterior plate and an aluminum tape prevented from being brought into high pressure state at the time of attaching the condensation pipe thus applying pressure to the surroundings. SOLUTION: The heat insulation box is provided with a gap for releasing the air remaining in the space between the exterior plate and the inner box at the time of filling the space with a foamed heat insulation material.
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