... gem, bijiou, necklaces, earrings,rings,braceletsClock parts, Watch straps and bands, water-proof watches.Glasses Shavers,denture,combs, ... Electronic workshop assembly line; Clock and watch eyeglasses shop,jewelry; Jeweler's shop, Family.you will use ultrasonic ... everywhere.Clean things: Electronic products, mechanical hardware fitting,eyeglasses, jewelry, clock and watch, money, fruit and so on. ...