Credit Card Reader Ultrasonic Plastic Welding Machine 1.20KHz/2000W 2. Two ultrasonics weld unit with film rolling system Credit card readerMaterial: PlasticsApplication ... the horn leaves no marks on the plastic even at high pressure. At the same time, a second actuator on ... -acid batteries, 3-inch floppy disk, U disk, SD card, CF card, USB connectors,Bluetooth. Toys,stationery: folder, album, folding ...