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Heat insulating material for molten metal
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Manufacture of ceramic porous body
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Method for treating or recovering alkali hydrosulfide solution with organic solvent
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Treatment or recovery of alkali hydrosulfide solution
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Heat insulating material for molten metal
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Process for disposing alkali hydrogen sulfide solution containing organic oil component
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Animal excrement fermented fertilizer
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Method of composting organic waste water treated sludge
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Method for removing metallic sulfide from alkali hydrosulfide solution
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Utilization of waste gas and waste soda liquid in oil refinery
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