Maezawa Industries, Inc. designs, manufactures, sells, and installs equipment and apparatus for water supply and sewage systems in Japan and internationally. It offers valve products, such as gate, control, butterfly, check, eccentric, air, hydrant, maintenance, emergency shutoff, and sluice gate and weir valves; and environmental systems, including water purification, sewage treatment, and soil purification systems, as well as system consultation services. The company also provides water supply systems consisting of hybrid MF membrane systems; water purification systems, such as advanced oxidation systems, membrane filtration systems, and water intake and sedimentation equipment; wastewater treatment systems comprising oxidation ditch nitrogen removal systems, membrane bioreactors, and LANDOX OD systems, as well as multi mesh screens; and industrial environment products that comprise UF membrane filtration equipment, PTFE membranes with activated carbon powder for water reuse, and dissolved air floatation equipment, as well as chelate fiber. Maezawa Industries, Inc. was founded in 1937 and is headquartered in Kawaguchi, Japan.