... using, high-efficiency welding Product specifications high-power ultrasonic welding series: CR-2815 CR-3215 CR-4215 ... factory, plant filtration materials, auto parts industry, CR series ultrasonic welding machine features: 1. Valve, cylinder, pressure gauge, ... body, to facilitate easy operation, high intensity. 3.IE piezoelectric ceramic transducer, output stability, strong, durable and lasting. 4. ...