| 摘要 |
One or more plywood base plate members and at least one decorative plate are stuck together on top of each other, to thereby make a decorative plywood board of a given size. A joined decorative plywood board unit of a desired size is made of a plurality of the decorative plywood boards joined by a scarf joint. Then, the joined decorative plywood board unit and one or more base plates, each having a size of the size of the decorative plywood board unit, are attached together on top of each other, to thereby provide a board pile to be used as a component part for a musical instrument.
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