| 摘要 |
PROBLEM TO BE SOLVED: To provide an shelf unit at a ceiling for eliminating complexity of installation work. SOLUTION: This shelf unit 1 at a ceiling has a cutout part 2 having a rear upper part cut out larger than an external shape of a beam. A fixing metal fitting inserting opening 7 is arranged in an upper end part contacting with a top plate of a back board 3 for forming this cutout part. COPYRIGHT: (C)2006,JPO&NCIPI
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