... .ISO9001:2008 4.delivery time:within 30 days Ultrasonic cleaning machine IndustryCleaning objectsjewelryJewelry, diamond, gold, silver products,etcmachineryMoulds, precision parts, pressing ... ,and these parts are often complex shape,cracks addition,the tradition cleaning methods often unable to do anything,and V-KOOL ... parts used. high quality manufacturer of sliver products ultrasonic cleaning machine