... ,etcmachineryMoulds, precision parts, pressing parts, camera parts, bearing, hardware tools,etcelectronicsPCB board, electronic parts, TV parts, computer parts,etcAuto industryengine parts, gear box, ... ,microscopes,cameras,video cameras and other parts of the parts of the lens by ultrasonic cleaning ... ,bracelets and other trouble,just remove the shell,with the whole into appropriate cleaning agent ...