| 摘要 |
PURPOSE: Provided is a set gypsum board with an improved structure, to more easily connect gypsum boards without creating a crack between the gypsum boards and thus, to make an airtight set gypsum board. CONSTITUTION: The set gypsum board(20) includes four frame surfaces(21,22,23,24). The frame surfaces(21,22,23,24) are notched in an 'L' shape or upside down 'L' shape to the longitudinal direction of half of the front or rear side of the frame surface. As a result, a first notch portion(211) and a first iron portion(212) are formed on the first frame surface(21), a second notch portion(221) and a second iron portion(222) are formed on the second frame surface(22), a third notch portion(231) and a third iron portion(232) are formed on the third frame surface(23), and a fourth notch portion(241) and a fourth iron portion(242) are formed on the fourth frame surface(24). Each iron portion is adhered to a sheet iron(S) through an adhesive.
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