... shock absorber, auto nozzle, cylinder, valve,etcDental& Medicaldental tools, medical tools, injector, surgery tools, dropper, glass container,etcPlating& paintingpolishing ... ultrasonic cleaner is unique wonders.4.Watches,precision instruments:with the V-KOOL special ultrasonic cleaning,watches,precision instruments ... circuit boards,parts used. false tooth ultrasonic cleaner with lid to reduce noise