... Card Reader Ultrasonic Plastic Welding Machine 1.20KHz/2000W 2. Two ultrasonics weld unit with film rolling system Credit card readerMaterial: PlasticsApplication tecnique: WeldingMaterial 1 ... assumes the welding of the battery housing.1, automatic tracking frequency functions. 2. failure ... -inch floppy disk, U disk, SD card, CF card, USB connectors,Bluetooth. Toys,stationery: folder, album, folding ...