42 Engineering; chemical engineering; mechanical engineering; Scientific and technological services, namely, design, engineering, research, development, inspection, testing, performance analysis, documentation, and certification services for valves, chemical autoclave reactors, agitator blades, and severe service components, in the field of the chemical, petrochemical, metals, minerals, oil and gas, power, refining, food, aerospace, and pulp and paper industries; Testing, analysis, and evaluation of valves to determine conformity with certification standards; Design and engineering of valve purging and flushing systems; Design, engineering, research, development and testing services for severe service equipment and components used in the chemical, petrochemical, metals, minerals, oil and gas, power, refining, food, aerospace, and pulp and paper industries; Design, engineering, research, development and testing services pertaining to the material transformation of the surface of industrial products during manufacture by application of heat and polyamide, metal, metal oxide, carbide, or nitride coatings; Design, engineering, research, development and testing services pertaining to the heat treatment and coating of valve components, agitator shafts, turbines, and blades, autoclave components, and industrial components used in the aviation, electrical, hydraulics, printing, packaging, pump, rail, chemical, petrochemical, metals, minerals, oil and gas, power, refining, food, aerospace, and pulp and paper industries; Designing plant components and equipment for power plants; Designing plant components and equipment for chemical, petrochemical, metals, minerals, oil and gas, power, refining, food, aerospace, and pulp and paper process industries plants; Research, development, engineering and testing services in the fields of welding and material joining; Inspection services, namely, detection of leaks in valves; Inspection and testing of severe service components used in the chemical, petrochemical, metals, minerals, oil and gas, power, refining, food, aerospace, and pulp and paper process industries for quality control purposes or safety purposes; Inspection and testing of industrial equipment, including valves, valve parts, pipes, spools, tube bundles, medical devices, electronic cables, equipment hardware, and space flight life support equipment for the presence of contamination; Technology supervision and inspection in the field of chemical, petrochemical, metals, minerals, oil and gas, power, refining, food, aerospace, and pulp and paper process industries; Product testing; Design of computer-simulated models; Virtual testing of new product designs using computer simulations; Consulting services for others in the field of design, planning, and implementation project management of startup and shutdown of valves used in the chemical, petrochemical, metals, minerals, oil and gas, power, refining, food, aerospace, and pulp and paper process industries; Data collection and reporting services for equipment and for predictive maintenance associated with that equipment at mining, construction, and industrial sites; Technical consultation in the field of power plant engineering, namely, testing and evaluation of power plant equipment to improve performance and efficiency of such equipment