7 Subsea controls, namely, power and communication systems which provide hydraulic, electrical or electrohydraulic control and monitoring for production equipment, subsea control module (SCM), communication distribution unit (CDU), and DC control valve; subsea electric pumps and compressors and electronic controls therefor sold as a unit; subsea trees; subsea-intervention equipment, namely, completion workover risers, riser intervention systems and riserless intervention systems, open water wireline systems, injection systems, torque tools, seal replacement tools, cleaning tools, tooling control systems; oil-and-gas turret systems comprised of a fixed turret column supported by an internal or external vessel structure via a bearing arrangement; liquid-natural-gas transfer systems comprised of cranes, pipes for LNG and vapor return, frames, towers, bearings and a control unit; subsea loading systems comprised of a riser base, a buoyancy tank with swivels and a loading hose, and a pickup system for a loading hose; hydraulic controls for machines, motors and engines, namely, oil-and-gas production vessel controls; swivel stacks for use on Floating Production Storage and Offloading vessels, namely, hydraulic control machines that ensure all fluids, controls, and power are transferred safely from the geostationary components, namely, wells, flowlines, manifolds, and risers, to the rotating vessel and its processing plant; multiport selector manifolds, namely, parts of oilfield wellhead machines, namely, gate valves, ball valves, check valves, plug valves, globe valves, choke and manifold industrial pumps, pump and valve parts, pipe fittings and flanges for use in combining production and testing of multiple production manifolds; multiphase oil separators for separating oil, gas, and water for the oil industry; pumps, namely, multiphase electric pumps, single phase electric pumps; gas compressors for the pumping of process fluids, oil, gas and water for the oil industry; and pump control valves, being parts of drills and pumps in the oil industry