Valves for Controlling the Flow of Fluids in Well Drilling Operations and which Operate Primarily as Automatic Valves

SEALS, GASKETS, PACKINGS AND COMPONENTS THEREOF FOR OIL WELL DRILLING RIGS

Electrical cables; fiber optic cables; electrical cables featuring insulated copper conductors; data cables featuring fiber optic strands; data cables featuring insulated copper conductors and fiber optic strands; cables for use in the oil and natural gas industries, namely, optical cables