| 摘要 |
PROBLEM TO BE SOLVED: To provide a wooden board material which is excellent in heat resistance, soundproofing, strength, appearance and durability and easy to process and enables effective utilization of timber from forest thinning and which is inexpensive and has no possibility of producing noxious gas. SOLUTION: Many narrow boards 2 being stacked, they are nailed through the narrow board 2 to be the basis, from the narrow board 2 laid on one side of the narrow board 2 to be the basis to the board 2 laid on the other side of the board 2 to be the basis. By repeating such nailing, all the narrow boards 2 are integrated into one board body. COPYRIGHT: (C)2004,JPO
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