| 摘要 |
PROBLEM TO BE SOLVED: To provide a wooden grating not impairing the view when used in natural environment while maintaining a basic function. SOLUTION: A plurality of wooden cover members 1 of rectangular solid column shape are arranged in parallel to form quadrilateral plate shape. A water through clearance is machined in each of a plurality of cover members. Flat steel 2 is interposed at the center of each cover member, and connecting members allowing integral parallel arrangement are provided to constitute the wooden grating. COPYRIGHT: (C)2003,JPO
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