... 3.ISO9001:2008 4.delivery time:within 30 days Ultrasonic cleaning machine IndustryCleaning objectsjewelryJewelry, diamond, gold, silver products,etcmachineryMoulds, precision ... the shell,with the whole into appropriate cleaning agent(such as gasoline)tank cleaning,cleaning can get a multiplier effect.5. ... ,precision circuit boards,parts used. made in china small mirror ultrasonic cleaning machine