| 摘要 |
PROBLEM TO BE SOLVED: To enhance the strength and rigidity of a synthetic resin thin-plate panel without increasing the thickness of a thin-plate part 1. SOLUTION: This thin-plate panel comprises the thin-plate part 1, which is composed of a synthetic resin plate, and a plurality of long and narrow reinforcing members 2 made of a metal, which are made long enough to almost cross the thin-plate part 1 and juxtaposed in the thin-plate part 1 at prescribed intervals; and the reinforcing member 2 forms a protrusive streak part protruding to both obverse and reverse sides on the same normal to the thin-plate part 1.
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