| 摘要 |
PROBLEM TO BE SOLVED: To improve the appearance of connecting places of wall panels and enhance the workability by doing positioning easier. SOLUTION: A fitting projection 2 is formed at the end of one side of the main body 1 of panel and a fitting recess 3 at the end of other side, and the fitting projection 2 is fitted to the fitting recess thereby forming a fitting joint groove 4 between neighboring wall panels. Then, a joint expression 5 having a recessed groove 14 as same as fitting joint groove 4 is formed almost in parallel to the fitting joint groove 4 at the end portion of the main body 1 of the panel.
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