ultrasonic smart card spot welder in the production of Bank card, smart card and VIP, eliminating the need for pre-welded solde ultrasonic smart card spot welder in the production of Bank card, smart card and VIP, which need to dip tin coils and then welding.ultrasonic welder can welding wire directly, the welding spot has the following benefits: 1. welding spot firm, prevent to cold Weld. 2. ...
