... jewelry, diamond, watch band, watch cover, watch hand,etctextilespinneret plate, rubber parts, plastic molds, toy,etcothersseal, flapper, coins, pottery, bank card ... while cleaning,sterilization,ultrasonic other hand can also be used for skin care,long-term use of lubrication to keep ... players and other electrical appliances,precision circuit boards,parts used. mini ultrasonic cleaner for finger nail