HUAZHENG

meters, namely, densitometers, ohmmeters; meters, namely, electricity meters; detectors, namely, electromagnetic measuring detectors; measuring apparatus, namely, octants, spherometers, rulers, sound measuring apparatus, acidity meter, multimeters, chromometer, levelling instruments; surveying apparatus and instruments; measuring instruments, namely, resistance measuring instruments, voltage testers, conductivity meters, battery testers, cable testers, instruments for measuring, testing and checking the temperature, pressure, quantity and concentration of gas and liquids, pulse generators for testing electric current, and instruments for use in measurement of industrial components; distance measuring apparatus; gas testing instruments; electric transformers; electric installations for the remote control of industrial operations