AND

Balances; temperature indicators; moisture measuring meters; viscosimeters; scales; counting scales; load cells; hygrometers; gravimeters; material testing machines and instruments; shock testing machines; base plates (for surveying purposes); weight indicators; measuring or testing machines and instruments; FFT analyzers; voltmeters; electric or magnetic meters and testers; ultrasonic flaw detectors; computers; electronic machines, apparatus and their parts

Sphygmomanometers; nebulizers; clinical thermometers; medical machines and apparatus

Operation, check or maintenance of building equipment; repair or maintenance of automobiles; repair or maintenance of optical machines and instruments; repair or maintenance of electronic machines and apparatus; repair or maintenance of telecommunication machines and apparatus (other than telephone sets, radio receivers and television receivers); repair or maintenance of consumer electric appliances; repair or maintenance of power distribution or control machines and apparatus; repair or maintenance of laboratory apparatus and instruments; repair or maintenance of gauges; repair or maintenance of measuring vessels; repair or maintenance of measuring and testing machines and instruments; repair or maintenance of medical machines and apparatus; repair or maintenance of integrated circuits manufacturing machines and systems; repair or maintenance of semiconductor manufacturing machines and systems; cleaning in and out of buildings; floor polishing; cleaning of gardens