... first level of adjustable structure, convenient transfer mode 3.stable using, high-efficiency welding Product specifications high-power ultrasonic ... : CR-2815 CR-3215 CR-4215 The advantages of ultrasonic products : strong, large parts can be welded products, ... factory, plant filtration materials, auto parts industry, CR series ultrasonic welding machine features: 1. Valve, cylinder, pressure gauge, ...