| 摘要 |
PROBLEM TO BE SOLVED: To provide forms for placing concrete, by which a concrete surface, from which mortar is difficult to peel off, is formed even when the surface of placed concrete is coated with mortar. SOLUTION: In the forms for placing concrete having a sheathing board section 32 using one surface as a concrete placing surface 31 and being made of plastics, a projecting strip or a groove is formed to the whole surface of the surface 31. COPYRIGHT: (C)2003,JPO
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