Level control valves for water apparatus, relief valve (regulators) for water apparatus, automatic irrigation equipment for agricultural use, water softening devices, water purification devices, reverse osmosis water devices, water purification installation, filters and engines for waste purification plants, filter and engine combinations for water purification apparatus; lighting fixture, lamps, bulbs, lights, air-conditioners, ventilators, radiator and natural gas installations, steam boilers, boiler exchanger, burners, solar energy collectors and devices for heating, heat pumps; taps for water and gas installations and water control commanding systems

Non-metallic hoses and fittings, hoses made of rubber, plastic and gum elastic, canvas hose, fire hoses, non-metallic pipe casings and bushings, hose bushings, impermeable sealing materials in this class, washers, gaskets, seals, cylinder gaskets, isolators, fiberglass and foam for insulating purposes, insulation plates, insulation compositions treated with dyes and lacquers being coating materials, insulating tapes and bands, chemical components to prevent leakage, rubber brackets, rubber pipes and rubber parts of the aforementioned

Curb stones, tiles, marble, artificial marble, and marble tiles for floor and wall lining