7 Machine tools for use in oil and gas wells, and in geothermal wells on land and at sea, namely, electro-mechanical well intervention machines; well completion machines; machine tools and tools being parts of machines for use in oil and gas wells, and in geothermal wells on land and at sea, namely, hydraulic, and electrical systems comprised of hydraulic power units driven and controlled by electric lines for use in connection with oil and gas wells on land and at sea; inflatable, and hydraulic well packing machines; machine tools for the installation of inflatable, and hydraulic well packing expansion devices, barriers being part of packers and valves being part of packers; machine tools and tools being parts of machines for supervision, monitoring and control of fluid flow, for use in opening and closing valves; machine tools and tools being parts of machines for use in interior repair and intervention of oil and gas wells; machine tools and tools being parts of machines for use in oil and gas well completion and stimulation; machine tools and tools being parts of machines for use in fastening, mounting, installing loosening, cutting, boring, collecting, removing and transporting tools, mechanical devices, pipes, pipe and well parts, packings, sleeves, valves, and barriers in wells; machine tools and tools being parts of machines for use in loosening, collecting, removing, and transporting accumulated material and fluid in wells; parts, fittings and accessories for the aforementioned goods, namely, packers, fittings, valves, bearings, all being parts of machines