... time:within 30 days Ultrasonic cleaning machine IndustryCleaning objectsjewelryJewelry, diamond, gold, silver products,etcmachineryMoulds, precision parts, pressing parts, ... ,sterilization,ultrasonic other hand can also be used for skin care,long-term use of lubrication to ... appliances,precision circuit boards,parts used. high quality manufacturer of sliver products ultrasonic cleaning machine