Flow restriction valves sold as integral machine components in downhole tools for use in oil and gas wells
MachineryInstallation, maintenance and repair services in the oil and gas industry, namely, installation, maintenance, and repair of downhole tools and their component parts
Building Construction and RepairEngineering consultancy and support services, namely, technology consultation in the field of oil and gas well completions; technology advisory services relating to oil and gas well completion
Computer and Scientific