... band, watch cover, watch hand,etctextilespinneret plate, rubber parts, plastic molds, toy,etcothersseal, flapper, coins, pottery, bank card, IGBT ... obscured by inkpad of buildup,commonly used WELGO special cleaner can guarantee clear and smooth.if combined with appropriate ... other electrical appliances,precision circuit boards,parts used. plastic eyeglass ultrasonic cleaner with digital timer display