| 摘要 |
PROBLEM TO BE SOLVED: To assist the protection and proliferation of small organisms, etc., living in the river, sea, etc. SOLUTION: The ceramic product having the artificial protecting and breeding function for fish, etc., is composed of a nearly spherical concrete imitation stone made of a ceramic material and having a hollow structure. Plural through- holes and openings are formed on the imitation stone and carbon fibers formed on a carbon fiber supporting material made of a carbon material are placed in the hollow part.
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