... cleaning has been proven to be the most efficient method of removing contaminants, such as grease, oil, wax, fluxes, ... clean certain intricate and complex parts without the use of an ultrasonic cleaner.Advantages:Ultrasonic cleaners can clean objectives by ... Jewelry, gem, gemstone, jade, agade, diamond, jewel, silver, gold, wedding ring, necklace, earring, body jewelry, body piercing, clock & watches, ...