6
metal dampers and expansion joints for use in gas turbine exhaust systems, special purpose gas flow equipment and air pollution control; metal water flow gates
11
air pollution control equipment, namely, process gas control systems and exhaust gas control systems for industrial operations, namely, plants, pulp and paper mills, and petrochemical and industrial plants, comprised of duct work, diffusers, transition ducts, diverters, tee and other shaped elbows, expansion joints, bypass channels, dampers, dampeners, turning vanes and blanking plates all sold as a unit
37
technical services, namely, installation and repair of gas turbine and other exhaust systems, damper, expansion joints, water control gates, special purpose gas flow equipment and air pollution control equipment for use in power plants, pulp and paper mills, and petrochemical and industrial plants
42
engineering services for the power generation, pulp and paper mill and petrochemical and industrial industries, in the field of gas turbine and other exhaust systems, dampers, expansion joints, water control gates, special purpose gas flow equipment and air pollution control equipment; technical consultation services for the power generation, pulp and paper mill, and petrochemical and industrial industries, in the field of gas turbine and other exhaust systems, dampers, expansion joints, water control gates, special purpose gas flow equipment and air pollution control equipment
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