Compressor, start, run, shutdown:
-
Small centrifuge
-
Forklift in motion
-
Electric generator (hum)
-
Forklift, on, off, standby
-
Air compressor, air blow
-
Welding transformer, working,, turning on
-
Spinning machine
-
Mill for grinding grain, Brewing unit
-
Signal for lunch at the factory
-
Hydraulic down machine
-
Power station turbine
-
Brewing unit, fluid drilling
★★★★★