... 3.MOS-FEF technology electronic components Split Type Ultrasonic Plastic Welding Machine Structure Features:1.Automatic fraquency trrcking system ... increase response to 10 times faster than conventional type ,stable and less faults Specification:Model JS-ZS1815Output ... deformation, pollution-free, firm welding and easy operation. This machine is applicable to toy, home appliances, electronics, motor, ...