... clean:1.Printer inkjet-heads, seals, ancient coins, badges, valves, machine nozzles,2.Silverware. bronze ware, antiques, Jewelry, ... and solvent cleaner for more higher cleaning requirement2.Mechanical timer control, 1~30min adjustable.3.Power supply can be ... 120V or AC 220 ~ 240V4.industrial control chip microcontroller. flexible circuit boards control, more secure & stable5.complete stainless steel ...