42 Scientific research; industrial research in the fields of environmental protection, reduction of CO2 emissions and economizing environmental resources; technological consultancy in the fields of environmental protection, reduction of CO2 emissions and economizing environmental resources; design of apparatus for heating, steam generating, cooling, refrigerating, drying ventilating, water supply and sanitary purposes cooling towers, industrial plants and power plants, heat exchangers, heat regenerators; all of the aforesaid services for apparatus for heating, steam generating, cooling, refrigerating, drying ventilating, water supply and sanitary purposes, cooling towers, industrial plants and power plants, heat exchangers, heat regenerators and all the aforesaid services for the purpose of environmental protection, reduction of CO2 emissions and economizing environmental resources