9 oil and gas products; namely, pneumatic counters, pneumatic relays, temperature controllers, pneumatic and electric pressure switches, pressure regulators, high temperature shutdown controls, interface detectors, level controls, metering stations, pressure recorders, temperature recorders, differential pressure recorders, dispensed oil in water monitors; bottom sediments and water monitors, gas flow computers, net oil computers, flow totalizers, rate indicators, alarm switches, valve positioners, lease automatic custody transfer units, three-phase separator well testers, skid mounted gas meters