Consulting in the field of engineering; Consulting in the field of structural engineering; Design and development of computer hardware; Design and development of computer hardware and software; Engineering services, namely, engineering for the evaluations, estimates, research, and reports in the technological and industrial fields; Industrial research in the field of installations for the production, storage, and distribution of energy; Research and development of new products for others; Tec...

Air conditioning apparatus; heat accumulators; steam accumulators; electric air deodorizing apparatus; air cooling apparatus; air driers, namely, dehumidifiers; air conditioning installations; air filtering installations; ionization apparatus for the treatment of air or water; air valves for steam heating installations; air purifying apparatus and machines; air sterilizers; boiler pipes for heating installations; boilers, other than parts of machines, namely, electrical boilers, furnace boile...