| 摘要 |
PROBLEM TO BE SOLVED: To provide the structure of a counter supporting material wherein counters, in a plurality of steps, spaced apart from one another at predetermined intervals can be easily set and held. SOLUTION: Each of counters 7 is supported by a supporting material 3 of an integral construction, and if each supporting material has a predetermined size, the counters 7 can also be easily installed at predetermined intervals and the intervals do not vary unless the materials 3 are deformed. Each of the materials 3 can be fixed to a wall and the like even by two screws so as not to rotate.
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