MRC Global Inc. distributes pipes, valves, and fittings (PVF), and related products and services to the energy industry worldwide. The company offers approximately 175,000 stock keeping units, including an array PVF, oilfield supply, and automation, instrumentation, and other general and specialty industry supply products from approximately 18,000 suppliers. Its products include valves consisting of ball, butterfly, gate, globe, check, needle, and plug valves; and specialty products, such as lined corrosion resistant piping systems, valve automation, and top work components, as well as steam and instrumentation products used in various process applications in refinery, petrochemical, and general industrial sectors. The company's products also include carbon steel fittings and flanges, and stainless steel and alloy pipe and fittings; stainless, alloy, and corrosion resistant pipe, tubing, fittings, and flanges; carbon line, casing, and tubing pipes; natural gas distribution products comprising risers, meters, polyethylene pipe and fittings, and various other components and industrial supplies; oilfield and industrial supplies and completion equipment, which consist of high density polyethylene pipe and fittings, valves, well heads, pumping units, and rods; and various specialized production equipment, including meter runs, tanks, and separators. MRC Global Inc. serves customers in the upstream, midstream, and downstream sectors of the energy industry; mining and mineral processing, and power generation; and other industrial sectors, including pulp and paper industries. It was formerly known as McJunkin Red Man Holding Corporation and changed its name to MRC Global Inc. in January 2012. The company was incorporated in 2006 and is headquartered in Houston, Texas. MRC Global Inc. is a subsidiary of PVF Holdings LLC. MRC Global Inc. (NYSE:MRC) operates independently of PVF Holdings, Inc. as of May 13, 2013.