| 摘要 |
PROBLEM TO BE SOLVED: To provide light-weighted and durable plywood for bulletin board whose, whole body is not likely to bend to the compressive force of sticking a fastener, which will not crack, even if it is stuck with a pin of the fastener, and into which the pin of the fastener is easy to be stuck and from which the pin of the fastener is hard to come off. SOLUTION: The plywood for bulletin board 1 is so formed that surface layer boards 2 and 3 comprising a lauan veneer are stacked on the surface and rear face of a falcataria core board 4, respectively. Two falcataria woods 41 and 42 are superposed and bonded to form the core board 4. The two falcataria woods 41 and 42 may be superposed so that the fiber direction crosses each other, or may be superposed so that the fiber directions coincide with each other. COPYRIGHT: (C)2007,JPO&INPIT
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