[Design, Construction, and Equipment Sales for Water Treatment Systems] ○ Rapid Filtration Device "Sunlight" (removal of iron, manganese color, and turbidity) ○ Rapid Filtration Device "Sunlight W" (for baths, pools, ponds, etc.) ○ Fully Automatic Activated Carbon Filtration Device "Small FRP to Large SUS/SS" ○ Softening Water Treatment Device "Re-Ionator" ○ Nitrate Nitrogen Removal Device "Nitreator" ○ Various Membrane Devices (Seawater Desalination Devices, Industrial Reverse Osmosis Membrane Devices, UF, MF Membrane Devices) ○ Various Pure Water Production Systems (from pure water to ultra-pure water) ○ Various Filter Housings (FRP, PP, SUS) ○ Various Filters and Chemicals [Sales of Coagulants and Equipment for Wastewater and Waste Liquids] ○ Coagulant "Quick" ○ Alkaline Neutralizing Agent "Cement Buster" (Neutralizing agent for cement, mortar, and concrete wastewater) ○ Small Coagulation Separation Filtration Device "Speeder" ○ Special Activated Carbon ○ For Solvent Paints (Paint Renovation Paint Killer) ○ COD Decomposition Device (Resolution System) ○ Various pH Adjusters ○ Various Filters, Filtration Bags ○ Development of Coagulants for Various Wastewater and Waste Liquids