7 petroleum production equipment for the oil and gas drilling, production and transmission markets, namely, pressure control equipment, namely, wellheads, valves for wellheads, pipes and pipelines, refineries, and petrochemical plants; blow-out preventers, chokes and choke manifolds, actuators, pipe and pipeline pigs; control systems comprised of pressure sensors and actuators for chokes, valves and blow-out preventers; underwater pipeline tie-ins; pipeline repair equipment, namely, pipe couplings, and metal couplings and elastomeric, rubber and plastic parts for same; compression and power equipment for the oil and gas drilling, production and transmission markets and the industrial, manufacturing, process and nonutility power generation markets, namely, engines, compressors, gas turbines, and turbochargers, controls for engines, compressors, gas turbines, and turbochargers, emission controllers and analyzers for engines, compressors, gas turbines, and turbochargers, and parts for same