| 摘要 |
<p>A form panel (1) capable of increasing the efficiency of a concrete form construction work, comprising a plurality of expandable parts (3) having a plurality of projectedly bent rows (10) bent so as to be protruded toward a concrete depositing surface side and recessedly bent rows (11) bent so as to be recessed toward the concrete depositing surface side both provided parallel with each other and having a plurality of longitudinal slits (7) formed, in a straight line, in the projectedly bent rows (10) and recessedly bent rows (11) at proper intervals.</p> |
