30L Ultrasonic Cleaner Dual-Frequency Professional Digital Cleaning Machine 110V. Dual Frequency Ultrasonic Jewelry Cleaner Machine 30L lab Professional Ultra Sonic Glasses Cleaning hypersonic Heated for Diamonds, Eyeglass, Ring, Food, Gun Parts, Watches, Denture. Traditional hand washing or washing machine cleaning is difficult to penetrate the gap to achieve all-around cleaning. This ultrasonic cleaner is your […]