Fluid connectors, pipes, conduits, inlets and outlets made of metal for use in hydraulic fracturing; metal valves for use in hydraulic fracturing; frac trees; Launchers for hydraulic fracturing; Fracking services; fracturing services for the treatment of oil and gas wells; installation and maintenance of equipment used for hydraulic fracturing; equipment performance monitoring and tracking in the field of hydraulic fracturing; consulting services in the field of hydraulic fracturing; operatio...