| 摘要 |
<p>Side walls are more difficult to melt when a light-weight melt-resistant material is used. Disclosed is a case (10) having side walls (11) configured from a plurality of layers, wherein the side walls (11) are provided with an outer wall, a melt-resistant material (13) which is disposed on the inner side of the outer wall with a predetermined space therebetween, and an inner wall (14) which is disposed on the inner side of the melt-resistant material (13) with a predetermined space therebetween.</p> |
