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(1) Water
quality management & improvement of rivers and lakes.
Water treatment consultation.
(2) Manufacturing
and sales of Jarikko Purification System. River purification,
food factory wastewater treatment and community plant treatment
consultation by Jarikko Purification System.
(3) Manufacturing and sales of Ryuri Tower for the eutrophication control by removing dormant spores.
(4) Manufacturing and sales of Ryuri Tower for the reduction of sedimentation time.
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