Automatic valves for controlling the flow of oil in pipelines; Control valves for regulating the flow of gases and liquids; Decorative and fanciful items for covering of, and for use in connection with protective helmets, excluding stickers; Electric sensors; Electronic valves for controlling gas or fluids; Fuel pump testers; Metering orifices, namely, orifice plates for metering or controlling the flow rate of liquids; Piezoelectric sensors; Pressure measuring apparatus; Pressure relief valv...