| 摘要 |
PROBLEM TO BE SOLVED: To provide an artificial fish-breeding reef that is readily and safely assembled. SOLUTION: A frame 1 constituting the bottom part of a fish-breeding reef is installed and a plurality of blocks 2a, 2b and 2c obtained by building steel products in a block form is welded and fixed to the frame. The blocks 2a, 2b and 2c and/or connected bodies 3a, 3b and 3c for connecting the blocks 2a, 2b and 2c are equipped with a footing member 5 for temporary construction. COPYRIGHT: (C)2005,JPO&NCIPI
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