... watch band, watch cover, watch hand,etctextilespinneret plate, rubber parts, plastic molds, toy,etcothersseal, flapper, coins, pottery, bank card, IGBT, ... a lot of dust buildup in the dirt will jade ornaments,and these parts are often complex shape,cracks addition,the ... and other electrical appliances,precision circuit boards,parts used. plastic eyeglass ultrasonic cleaner with digital timer display