| 摘要 |
PROBLEM TO BE SOLVED: To provide a fitting structure of a full open window capable of fitting a full open large-sized window to a wall panel without causing a crack or breakage in the periphery of the bored opening part. SOLUTION: Each one pair of plate-like projections 32 is extended on the upper and lower ends of a support 3 having a substantially square-like section, one projection 32 is inserted in cutouts 14, 24 provided on the lower of a vertical rail 12 having a substantially square-like section fitted to the right and left edges of the back of a facing material 11 of a window upper panel 1 and the upper end of a vertial rail 22 having a substantially square-like section fitted to the right and left edges of the back of a facing material 21 of a window lower panel 2, and the other projection is inserted in the vertical rails 12, 22.
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