... 30 days Ultrasonic cleaning machine IndustryCleaning objectsjewelryJewelry, diamond, gold, silver products,etcmachineryMoulds, precision parts, pressing parts, camera parts, bearing, ... ,chain,pen,CD,scraping,knives,combs,toothbrushes,dentures,tea,etc.there are bottle,teats and fruits such as grapes ... of the parts of the lens by ultrasonic cleaning ,etc.all the world the truth filling completely.3.Jade, ...