| 摘要 |
In a storage unit ( 60 ) of a rectangular parallel-piped shape which is formed of a pair of horizontal panels ( 61 ) and a pair of vertical panels ( 62 ) that are connected with one another in an annular fashion, each of said horizontal panels ( 61 ) has a fitting groove ( 70 ) extending in a lateral direction thereof into which a part of a structural member of a structural body into which the storage unit is built, and each of horizontal panels also has a positioning groove ( 71 ) extending in a lateral direction thereof into which a protrusion formed on a horizontal cover covering the one horizontal panel is fitted. As a result, it becomes possible to properly construct a storage space in accordance with the purpose of use of a user.
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