(57) [summary] The present invention even if the effective use of the short plate such that the waste material, Further sections can be used without removing bad its bad part a wooden board with a part of a crack, etc., also can be used rough cheaper wood board of wood, looking good, as well giving the impression that the use of expensive wood board , it costs down is I achieved. A short plate 1A~1D by joining the long wooden board 1 And then, bonding the quality of the month plates 4 and 5 on both sides of the wooden board 1.
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