... us.Design philosophyDifferent to the chemical cleaning,this machine use the ultrasonic technology for physical cleaning,combine ... with the following objects: VCD/DVD disc,small hardware,jewelrys,watch,necklace,ear ring,ring,bracelet,coin,glasses ... to the cleaning of: VCD/DVD disc,small hardware,jewelrys,watch,necklace,ear ring,ring,bracelet,coin, ... //www.dgnekon.com/ Semi-auto eyeglass cleaning machine