9 Electric drives for regulating flow rate quantities of liquid, gaseous and solid materials; sensors, in particular resistance thermometers, pressure gauges and level transducers; power supply apparatus and power packs; control valves for regulating the flow of gases and liquids; heat regulating apparatus, namely valves for controlling and regulating the flow of gases or liquids not being parts of plumbing, heating, cooling installations or machines; electronic components, namely, transmitters, management switch and process controllers; electronic control apparatus for valves; solenoid valves being electromagnetic switches; measuring apparatus and instruments namely, valves for controlling auxiliary fluid, such as air, gas and water not being parts of plumbing, heating, cooling installations or machines; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; electric and electronic valve actuators