Oilwell or gas well drilling and operating tools and equipment, namely, hydraulically actuated drilling and snubbing choke valves and hydraulic valve actuators as parts of drilling machines used in drilling; oil and gas well drilling equipment, namely, remotely controlled choke valves as parts of machines used in drilling operations; control valves as parts of machines for regulating the flow of gases and liquids for use in the oil and gas industry; control valves and linear actuators with hydraulic or pneumatic operation as parts of machines for regulating the flow of gases and liquids for use in the oil and gas industry; parts of oil and/or gas wellhead machines, namely, gate valves, plug valves, cement valves, mud valves, check valves, frac valves, wire-cutting valves, subsea production valves, surface safety valves and valve bodies