| 摘要 |
PROBLEM TO BE SOLVED: To provide a hollow structure plate which can improve rigidity, heat resistance, and surface smoothness and eliminate warpage. SOLUTION: The hollow structure plate 10 having a hollow part partitioned by a large number of bosses or ribs between a pair of parallel liner plates, on the surface of an intermediate 1, a face bar 2 is laminated by heat fusion, and a board 3 is laminated on the face bar 2. The weight per unit area of the board 3 is preferably 100-1,000 g/m<SP>2</SP>. COPYRIGHT: (C)2007,JPO&INPIT
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