Electrical apparatus and instruments for monitoring swimming pools, water parks, water treatment plants and waste water treatment plants, namely, analyzers, temperature monitors, and flow measurement devices, and parts and fittings therefor
Electrical and Scientific ApparatusWater purification units; sewage treatment plants; thermostatic valves; heat exchanges; heaters, filters and pumps sold in combination for use with swimming pools; water filtering units in combination with aquariums and water parks
Environmental Control ApparatusConstruction and installation of water purifying plants; sewage treatment plants, industrial effluent treatment plants, swimming pools, aquariums and water parks; construction and repair of dams, reservoirs, and towers to collect and store water
Building Construction and Repair