... to clean the coating of the optical glass such as lens, prism and eye glass. Ultrasonic system is convenient ... 6)Adjustable power: easy adjustable power within 20%-100% 7)Heating: The heating may promote chemical activity of cleaning ... , bracelets, coins, watches straps and bands3.Glasses, sunglasses, contact lens accessories4.Daily personal care5.Dentures, combs, toothbrushes, tableware6.kinds of ...