Machines, also mobile, for the production of nitrogen and oxygen; machines, also mobile, for the production of gas, nitrogen or oxygen.

Training in the field of building, construction and skilled trades; educational services, namely providing training of inmates for certification in the field of building, construction and skilled trades; educational services, namely, providing apprenticeships in the field of building, construction and skilled trades

Research and development in the field of supercapacitors

Research and development in the field of supercapacitors