... time:within 30 days Ultrasonic cleaning machine IndustryCleaning objectsjewelryJewelry, diamond, gold, silver products,etcmachineryMoulds, precision parts, pressing parts ... applied:daily use items such as gold and silver jewelry,jewelry,hair,accessories,brooch,glasses,watch, ... all optical lenses,such as varies glasses(including contact lenses),magnifying glass,binocular,microscopes,cameras,video ...