... .the family applied:daily use items such as gold and silver jewelry,jewelry,hair,accessories,brooch,glasses,watch,chain,pen,CD,scraping,knives ... ,etc.all the world the truth filling completely.3.Jade,jewelry processing industry:the grinding and polishing process,a lot of ... to do anything,and V-KOOL special ultrasonic cleaner is unique wonders.4.Watches,precision instruments:with the V-KOOL special ...